Stocks are completely worthless. Companies may be real, and they may have worth, but stock in a company means absolutely nothing unless you control a large percentage of it.
If a company fails, some other company buys them, chews them up, and spits them out. A few people lose jobs, and eventually you'll have to create an account at Chase to access your Washington Mutual account, but overall nothing changes.
If a company fails, and no company is dumb enough to buy them, the government will bail them out, and the taxpayers will end up paying for the ridiculous overtime and pensions that GM gives to the UAW.
If a commodity goes up or down in value a lot, actual production of something actually useful can be affected.
I'd rather not be able to buy a car for a few months than not be able to buy some wheat or cotton to feed and clothe myself.
You're a moron. There is a reason we value heavy metals. The amount of them on the planet is constant. You can't make more.
There's no need to tie the raw amount of gold a person or nation has to any industry. If any industry becomes more productive, it will simply control a larger percentage of the gold supply.
That's right. Percentage.
No one who wants a gold standard wants to stabilize the prices of different things. There's no logic reason to ensure that product X stays at about the same cost as product Y.
With a baseless economy (like what we have now), governments and corporations can arbitrarily pretend that their productivity has gone up and thus claim a bigger share of the pie. To which the government responds by printing more pie to parcel out. Yet actual production has NOT gone up. All that has happened is that the government or corporation has lied and taken a larger share than their actual worth.
With a gold based economy, all money at any point is guaranteed to be worth X amount of gold. You can't pull the same crap as above because people can and will reject your paper (and now digital) money, and have a guaranteed economy because of the fixed, known amount of gold in play.
Today, people are buying gold up like mad because they do NOT trust the government, they do NOT like how he economy is nothing but made up numbers in a database that do not represent any actual production or worth, they do NOT like seeing the government print more money and hand it out to only themselves and major corporations.
The problem is that these people have no idea how much their gold is worth, and they don't know how much is on the market.
If the market was based on gold, the government could triple the amount of money in the world, and people who held gold would INSTANTANEOUSLY have their equivalent amount of money tripled. People who only used paper currency would have to hope and pray and way for that money to trickle down from up top. (Hint: It'll take forever, and it'll trickle down to a tune far less than 300%.)
And anime/manga porn is legal in the United States, regardless of whether it depicts children or adults.
No it's not. The Supreme Court said it was legal, but then they passed a law saying it wasn't just a few years ago.
Yes, it's complete bullshit. Yes, it happened. Yes, it's been used against people. Yes, it's been used against people who ONLY had animated porn, when they claimed they would only use the law to tack on additional shit to people who had real child porn as well.
"All it would take is one person with 10GB of porn to keep them busy for a couple hours."
I find the more porn I have, the shorter I last.
I'd just underclock my processor something fierce, tell my machine to boot from a non existent drive, etc.
If they ask me to boot it up so they can search, I'll say "it's broken". And then I can show them that it's "broken".
Have it boot to a separate Windows partition, with NTLDR missing or some such. Boot, error, lol. Or boot, windows loading bar for 10 minutes, blue screen lol.
My complaint was about the fact that AC was talking about detonating BY phone, as in, using a phone as a trigger. Yet you and TheNumberless started talking about the chances of recovering information from the blown-up phone.
THERE IS NO PHONE ON THE BOMB, JUST SOME GENERIC RECEIVER.
The receiver has no sensitive information. If you cheap out and use a phone (instead of building your own receiver), just use a stolen or prepaid phone. Trigger it however you want. Call the thing from a payphone. Connect it to the Starbucks WiFi and have it connect to a time server and go off at time X. Whatever.
Even if you use a phone as the receiver, to suggest that they will be able to recover any useful information is absurd. You don't have to write ANYTHING to the flash, just run everything in RAM.
Your typical moron terrorist will have a trigger set to go when he calls the stolen/prepaid/otherwise "clean" phone from his real phone, the FBI can find some hardware IDs on the scrap, and the carrier can find the last call to that phone in the log.
Anyone with a brain would anonymize their trigger signal if it had to go through the carrier at all. Push it out over the free WiFi internets littered around every urban center. Use a rooted phone which has direct access to the radio and just spam the signal at max volume. Scrawl "Call Mandy for a good time 555-1234" on bathroom stalls. Post the number on 4chan. Whatever.
I, for one, am glad the average terrorist is as dumb as the average slashdotter.
By definition, if our "ability to measure the system" was not perfect, then we do NOT "fully [understood] a dynamic system".
Granted, there is no way for something within a system to fully understand it. Even if presented with the full rules, you couldn't get exact measurements. Even if you got exact, instantaneous measurements and had instantaneous processing, you could never fully erase the effect of that measuring and processing, or the impact of having the information.
There's a point where better predictions aren't possible. We aren't anywhere near that point yet for the vast majority of practical things.
There's a point where something may always appear to be non-deterministic. But it's simply a deterministic result of the entire system's previous state, including the observer's action. Nothing is actually random.
It's more than good enough from any practical standpoint, but the Universe isn't actually random.
Quantum communication occurs how, by magic? No, you measure the signal. Analyze it, modulate it, decode it, and present it to the user.
Write down the measurements once, test against them forever.
You can't measure the signal without disrupting the legitimate people trying to communicate, but you have still measured the signal.
Alice and Bob measure the signals all the fucking time in order to communicate.
5000 years for classical crypto to be brute forced? Massively parallel FPGAs (or GPUs if you're cheap) say a few weeks or months. And it's getting faster all the time.
I'll just wait for a phone that stores all data encrypted and stores the key in RAM.
Boot up phone. Type in key. Access granted. Data decrypted.
Lost your key? Too bad. Data gone. Factory restore. Start over.
You'd only ever need to enter the key the first time out of the box, if the battery ever goes completely dead, or if you ever swap batteries.
You could have a capacitor that lasts for a few seconds to prevent the key from wiping if you swap batteries, like many universal remotes.
A simple hardware-based strobe would require almost no power to keep a key alive, and would work even when the rest of the phone was completely off, rebooting for a firmware update, whatever.
Have an auto wipe go once every couple of days without network contact, OR on receiving a kill signal from the network, OR on a certain number of invalid key attempts. So if they keep your phone locked up while they try to brute force your key / attack it physically, you'll have it wiped in a pretty narrow time window. If they put your phone back on the network to keep the dead man switch from wiping the phone, it'll just pick up the kill signal you sent out. This is, of course, assuming that they aren't in cahoots with whatever kill signal service you're using, so you might as well just rely on the dead man switch of no network activity, or no login, within X days, and the hardware dead man switch of "lol when the battery dies the key goes bye bye".
The only difference is that with classical crypto you can guess infinitely, while with quantum crypto you can guess only once.
You can copy a signal - any signal. You can copy a quantum signal and test against it forever.
Reading said signal is probably detectable on the other end, so they SHOULD stop communicating. You get one small piece of the message when you get the key (brute force or otherwise) and you have performed a successful denial of service attack.
If the two hosts then try to reestablish communication, they need to generate new keys. You can DOS them indefinitely since they're using a dedicated line that you have physical access to.
If you have physical access to the ends of the line, you can attack the key generation / tansceiving mechanism.
The same is true of any copper-based dedicated circuit.
The quantumness only affords you one thing: Oh no, I may have been snooped! Knowing you've been snooped only prompts you to stop talking. It does nothing to stop the snooper from listening to what was already sent. The packetization of information means they're less likely to get any useful amount of information, but the noise tolerance means they're more likely to snoop for a longer period of time undetected.
Neither a small piece of info leaking nor a failed eavesdropper performing a DOS attack is acceptable when talking about actual security, let alone security that costs billions.
Literally physically impossible assuming you have a dedicated circuit for each host pair. Otherwise you have to trust the nodes and routers.
It is infeasible to have a dedicated circuit for each node pair on the internet.
It is only feasible for small local networks, or one off pairs.
For a copper network using a dedicated circuit, you get the same boost in security. Quantum bullshit adds nothing.
And if you do have a quantum dedicated circuit, any failed MITM attack is a successful DOS attack. Any successful MITM attack remains successful. You don't need to worry about the entangled photons when you have physical access to the circuit - you can simply fuck with the initial entanglement.
You have physical access, you win. End of story.
The only security benefit comes from requiring dedicated circuits.
And for it to have any measure of security provided by the quantum nature, it needs to be a dedicated circuit between all host pairs.
When you have a dedicated circuit, you need physical access to perform any attacks. Quantum or regular, it doesn't matter.
Given a dedicated circuit and an attacker with physical access, any unsuccessful MITM attack becomes a successful DOS attack.
Any successful MITM attack will require the private keys of one of the parties. You need both if you want to hear the replies, but you only need Alice's keys to have Alice say "Bob, you're a fag.".
Getting the key is the "hard" part. Just like it's "hard" to get someone's house keys. You can develop various attacks against the algorithm by playing in the noise threshold. It may take you months, years, or longer. It may not. But if you may have physical access to the source and detector, you could exploit all sorts of weaknesses in implementation, take the damned things, or just sit at Alice's terminal. Kind of like walking up to someone's door and trying to pick their lock, get in through a window, etc.
In the end it's all a key sharing problem, regardless of where you source your keys from. If you have a dedicated circuit network, then you require physical access to launch an attack. Just as you need physical access to attack a dedicated circuit network using copper cable. Quantum stuff doesn't come into play.
And, as always physical access = Win.
The "security" of quantum communications comes not from the quantum nature, but from the fact that you're going to be using dedicated circuits between each host pair. This will never scale to the masses. Quantum communication along a dedicated circuit will pretty much only work in truly local networks and from Obama's to Putin (let's face it, Putin's in charge).
So a perfect Turing machine is insecure. And a secure Turing machine is incapable of acting as a Turing machine.
There's also a difference between "can't tell if a particular piece of code is harmful without executing it" and "can't tell if an arbitrary input of well-formed code is harmful without executing it."
Actually, no there isn't. Code is input. And your example involving anti-virus software makes no sense, has no relevance, and is wrong.
Anti-virus software works because of this: It contains a (finite) list of (particular) patterns that are known to be bad, selected from the (infinite, arbitrary) set of bad patterns. As long as the finite list is equal to or larger than the finite list of actual viruses in the wild the computer can't get infected.
Anti-virus software contains a finite list of exact patterns and an infinitely-applicable finite list of heuristics. Even if the finite list of rules was larger than the list of actual viruses, you could get infected if the list of rules did not form a super set of the list of viruses.
Dance around the bullshit of people you worship all you want. Me? I can't stand the smell.
The entire point of it being quantum means nothing.
If someone has the key, you won't know.
If someone doesn't have the key, you often won't know because they can fudge around in that tolerance level, and you'll just resend your message anyway because the network is not reliable, etc.
The only practical application which would give you any benefit from the quantum nature would be a dedicated circuit for each host pair. That is simply not feasible.
All. Digital. Security. Ever. Boils. Down. To. A. Key. Sharing. Problem.
The intertrons is a switching network, not a mass of dedicated circuits.
If you want to take someone down, you probably want to make sure that they can't re-route around your cut, and you probably want to do it without taking yourself down.
Are you proposing that quantum communication gets adopted and we actually have dedicated circuits for every host pair?
Uh, read my entire post please? And someone has to successfully eavesdrop for that protection to kick in. You can't control when they'll eavesdrop, so information can still get out, so it's far from a "secure" communication channel.
And with a noise tolerance of X, eavesdropping without being detected is not only possible, but likely very easy. Remember that Alice has to generate noise-free signals in the first place. Alice isn't made of magic. Eve can do anything Alice can.
And if you have a perfect network and zero tolerance, all eavesdropping attacks simply become denial of service attacks.
Alice: Hey Bob, let's talk. Eve: Looks like Alice and Bob are gonna talk. Bob: Sorry Alice, can't talk. Someone might be listening in. Maybe try again later?
The core idea of using quantum communication security (or, in general, quantum communication) is that you'll be able to tell when the message has been altered.
All a man in the middle attack has to do is read the message, recreate it, and send out a spoofed message instead of the original message.
Reading the message is trivial.
Recreating the message, while introducing tolerable levels of noise is trivial once you have the key. Alice does it all the time.
Blocking the original message is not trivial, but it is also not hard. It just requires physical access to the network. Be it jamming a wireless signal, splicing your attack node between two routers, whatever.
Sending out the spoofed message is trivial. The internet is slow and laggy. You can easily read, alter, and resend the message without the delay being noticed.
The only thing stopping a man in the middle attack is the need to have the key to resign an altered message as to make it appear that it came from Alice. This is a key-sharing problem. All digital security problems boil down to a key-sharing problem.
The only thing the quantum nature of communication adds is the ability to detect when people might be listening. This only gets around eavesdropping, not an actual MITM attack. Indeed, the quantum nature of the "security", as this paper shows, actually opens the door to attacks, as the communication medium is not perfect and there is now a threshold for tolerable noise. Attacks can play around in that threshold all day long.
Slashdot Mirror
Because commodities are real and have real worth.
Stocks are completely worthless.
Companies may be real, and they may have worth, but stock in a company means absolutely nothing unless you control a large percentage of it.
If a company fails, some other company buys them, chews them up, and spits them out. A few people lose jobs, and eventually you'll have to create an account at Chase to access your Washington Mutual account, but overall nothing changes.
If a company fails, and no company is dumb enough to buy them, the government will bail them out, and the taxpayers will end up paying for the ridiculous overtime and pensions that GM gives to the UAW.
If a commodity goes up or down in value a lot, actual production of something actually useful can be affected.
I'd rather not be able to buy a car for a few months than not be able to buy some wheat or cotton to feed and clothe myself.
If varstockprice(now()) 0.5*varstockprice(now()-1) then msgbox(Something fucked up is going on!)
Yeah, something fucked up is going on.
It's called slashdot eating your <s and >s.
I dunno where your semicolons or some of your parens went.
You're a moron.
There is a reason we value heavy metals.
The amount of them on the planet is constant.
You can't make more.
There's no need to tie the raw amount of gold a person or nation has to any industry. If any industry becomes more productive, it will simply control a larger percentage of the gold supply.
That's right. Percentage.
No one who wants a gold standard wants to stabilize the prices of different things. There's no logic reason to ensure that product X stays at about the same cost as product Y.
With a baseless economy (like what we have now), governments and corporations can arbitrarily pretend that their productivity has gone up and thus claim a bigger share of the pie. To which the government responds by printing more pie to parcel out. Yet actual production has NOT gone up. All that has happened is that the government or corporation has lied and taken a larger share than their actual worth.
With a gold based economy, all money at any point is guaranteed to be worth X amount of gold. You can't pull the same crap as above because people can and will reject your paper (and now digital) money, and have a guaranteed economy because of the fixed, known amount of gold in play.
Today, people are buying gold up like mad because they do NOT trust the government, they do NOT like how he economy is nothing but made up numbers in a database that do not represent any actual production or worth, they do NOT like seeing the government print more money and hand it out to only themselves and major corporations.
The problem is that these people have no idea how much their gold is worth, and they don't know how much is on the market.
If the market was based on gold, the government could triple the amount of money in the world, and people who held gold would INSTANTANEOUSLY have their equivalent amount of money tripled. People who only used paper currency would have to hope and pray and way for that money to trickle down from up top. (Hint: It'll take forever, and it'll trickle down to a tune far less than 300%.)
So, all in all, you're a moron.
This is a stupid idea.
Any farm worth a damn is already using that manure to fertilize their shit, or to power their shit.
If you want energy, just skip the cows and burn the stuff they were going to eat.
Or hell, burn the cow too.
Your typical value meal from burger king has more energy than a kilogram of TNT.
And anime/manga porn is legal in the United States, regardless of whether it depicts children or adults.
No it's not.
The Supreme Court said it was legal, but then they passed a law saying it wasn't just a few years ago.
Yes, it's complete bullshit.
Yes, it happened.
Yes, it's been used against people.
Yes, it's been used against people who ONLY had animated porn, when they claimed they would only use the law to tack on additional shit to people who had real child porn as well.
"All it would take is one person with 10GB of porn to keep them busy for a couple hours."
I find the more porn I have, the shorter I last.
I'd just underclock my processor something fierce, tell my machine to boot from a non existent drive, etc.
If they ask me to boot it up so they can search, I'll say "it's broken". And then I can show them that it's "broken".
Have it boot to a separate Windows partition, with NTLDR missing or some such. Boot, error, lol. Or boot, windows loading bar for 10 minutes, blue screen lol.
My complaint was about the fact that AC was talking about detonating BY phone, as in, using a phone as a trigger.
Yet you and TheNumberless started talking about the chances of recovering information from the blown-up phone.
THERE IS NO PHONE ON THE BOMB, JUST SOME GENERIC RECEIVER.
Phone.
Signal.
Package.
Receiver.
Switch.
Igniter.
Explosive.
The receiver has no sensitive information.
If you cheap out and use a phone (instead of building your own receiver), just use a stolen or prepaid phone.
Trigger it however you want.
Call the thing from a payphone.
Connect it to the Starbucks WiFi and have it connect to a time server and go off at time X. Whatever.
Even if you use a phone as the receiver, to suggest that they will be able to recover any useful information is absurd. You don't have to write ANYTHING to the flash, just run everything in RAM.
Your typical moron terrorist will have a trigger set to go when he calls the stolen/prepaid/otherwise "clean" phone from his real phone, the FBI can find some hardware IDs on the scrap, and the carrier can find the last call to that phone in the log.
Anyone with a brain would anonymize their trigger signal if it had to go through the carrier at all. Push it out over the free WiFi internets littered around every urban center. Use a rooted phone which has direct access to the radio and just spam the signal at max volume. Scrawl "Call Mandy for a good time 555-1234" on bathroom stalls. Post the number on 4chan. Whatever.
I, for one, am glad the average terrorist is as dumb as the average slashdotter.
By definition, if our "ability to measure the system" was not perfect, then we do NOT "fully [understood] a dynamic system".
Granted, there is no way for something within a system to fully understand it. Even if presented with the full rules, you couldn't get exact measurements. Even if you got exact, instantaneous measurements and had instantaneous processing, you could never fully erase the effect of that measuring and processing, or the impact of having the information.
There's a point where better predictions aren't possible. We aren't anywhere near that point yet for the vast majority of practical things.
There's a point where something may always appear to be non-deterministic. But it's simply a deterministic result of the entire system's previous state, including the observer's action.
Nothing is actually random.
It's more than good enough from any practical standpoint, but the Universe isn't actually random.
Quantum communication occurs how, by magic?
No, you measure the signal. Analyze it, modulate it, decode it, and present it to the user.
Write down the measurements once, test against them forever.
You can't measure the signal without disrupting the legitimate people trying to communicate, but you have still measured the signal.
Alice and Bob measure the signals all the fucking time in order to communicate.
5000 years for classical crypto to be brute forced? Massively parallel FPGAs (or GPUs if you're cheap) say a few weeks or months. And it's getting faster all the time.
Please, learn something about ANYTHING.
I'll just wait for a phone that stores all data encrypted and stores the key in RAM.
Boot up phone. Type in key. Access granted. Data decrypted.
Lost your key? Too bad. Data gone. Factory restore. Start over.
You'd only ever need to enter the key the first time out of the box, if the battery ever goes completely dead, or if you ever swap batteries.
You could have a capacitor that lasts for a few seconds to prevent the key from wiping if you swap batteries, like many universal remotes.
A simple hardware-based strobe would require almost no power to keep a key alive, and would work even when the rest of the phone was completely off, rebooting for a firmware update, whatever.
Have an auto wipe go once every couple of days without network contact, OR on receiving a kill signal from the network, OR on a certain number of invalid key attempts. So if they keep your phone locked up while they try to brute force your key / attack it physically, you'll have it wiped in a pretty narrow time window. If they put your phone back on the network to keep the dead man switch from wiping the phone, it'll just pick up the kill signal you sent out. This is, of course, assuming that they aren't in cahoots with whatever kill signal service you're using, so you might as well just rely on the dead man switch of no network activity, or no login, within X days, and the hardware dead man switch of "lol when the battery dies the key goes bye bye".
The key would preferably be in the most volatile location possible.
Michael Moore's intestines after binging on poutine and other Canadian "cuisine"?
It's third-party apps that don't allow multitasking.
I think you meant "Apple doesn't allow third-party apps to multitask.".
What the fuck happened here?
They're talking about using the phone to set off the bomb.
They're not talking about blowing up the phone.
If you're using another phone as a receiver, who gives a shit? Any old phone will do. Prepaid piece of shit, stolen, who gives a fuck?
Nothing on it will be traceable to anyone involved.
The only difference is that with classical crypto you can guess infinitely, while with quantum crypto you can guess only once.
You can copy a signal - any signal.
You can copy a quantum signal and test against it forever.
Reading said signal is probably detectable on the other end, so they SHOULD stop communicating.
You get one small piece of the message when you get the key (brute force or otherwise) and you have performed a successful denial of service attack.
If the two hosts then try to reestablish communication, they need to generate new keys. You can DOS them indefinitely since they're using a dedicated line that you have physical access to.
If you have physical access to the ends of the line, you can attack the key generation / tansceiving mechanism.
The same is true of any copper-based dedicated circuit.
The quantumness only affords you one thing: Oh no, I may have been snooped!
Knowing you've been snooped only prompts you to stop talking. It does nothing to stop the snooper from listening to what was already sent. The packetization of information means they're less likely to get any useful amount of information, but the noise tolerance means they're more likely to snoop for a longer period of time undetected.
Neither a small piece of info leaking nor a failed eavesdropper performing a DOS attack is acceptable when talking about actual security, let alone security that costs billions.
Each packet on it's own is not useless.
And for two-way communication you just need both keys.
And an attacker pretending to be Alice saying "Bob, you're a fag." would be pretty successful.
So would "Obama" telling Putin "Duck and cover, here it comes!" and then severing the communication line.
Literally physically impossible assuming you have a dedicated circuit for each host pair.
Otherwise you have to trust the nodes and routers.
It is infeasible to have a dedicated circuit for each node pair on the internet.
It is only feasible for small local networks, or one off pairs.
For a copper network using a dedicated circuit, you get the same boost in security. Quantum bullshit adds nothing.
And if you do have a quantum dedicated circuit, any failed MITM attack is a successful DOS attack. Any successful MITM attack remains successful. You don't need to worry about the entangled photons when you have physical access to the circuit - you can simply fuck with the initial entanglement.
You have physical access, you win.
End of story.
The only security benefit comes from requiring dedicated circuits.
All things appearing to be "random" are simply not yet fully-understood.
But the channel is NOT noise free.
And for it to have any measure of security provided by the quantum nature, it needs to be a dedicated circuit between all host pairs.
When you have a dedicated circuit, you need physical access to perform any attacks. Quantum or regular, it doesn't matter.
Given a dedicated circuit and an attacker with physical access, any unsuccessful MITM attack becomes a successful DOS attack.
Any successful MITM attack will require the private keys of one of the parties. You need both if you want to hear the replies, but you only need Alice's keys to have Alice say "Bob, you're a fag.".
Getting the key is the "hard" part. Just like it's "hard" to get someone's house keys. You can develop various attacks against the algorithm by playing in the noise threshold. It may take you months, years, or longer. It may not. But if you may have physical access to the source and detector, you could exploit all sorts of weaknesses in implementation, take the damned things, or just sit at Alice's terminal. Kind of like walking up to someone's door and trying to pick their lock, get in through a window, etc.
In the end it's all a key sharing problem, regardless of where you source your keys from.
If you have a dedicated circuit network, then you require physical access to launch an attack. Just as you need physical access to attack a dedicated circuit network using copper cable. Quantum stuff doesn't come into play.
And, as always physical access = Win.
The "security" of quantum communications comes not from the quantum nature, but from the fact that you're going to be using dedicated circuits between each host pair. This will never scale to the masses. Quantum communication along a dedicated circuit will pretty much only work in truly local networks and from Obama's to Putin (let's face it, Putin's in charge).
So a perfect Turing machine is insecure. And a secure Turing machine is incapable of acting as a Turing machine.
There's also a difference between "can't tell if a particular piece of code is harmful without executing it" and "can't tell if an arbitrary input of well-formed code is harmful without executing it."
Actually, no there isn't. Code is input.
And your example involving anti-virus software makes no sense, has no relevance, and is wrong.
Anti-virus software works because of this: It contains a (finite) list of (particular) patterns that are known to be bad, selected from the (infinite, arbitrary) set of bad patterns. As long as the finite list is equal to or larger than the finite list of actual viruses in the wild the computer can't get infected.
Anti-virus software contains a finite list of exact patterns and an infinitely-applicable finite list of heuristics.
Even if the finite list of rules was larger than the list of actual viruses, you could get infected if the list of rules did not form a super set of the list of viruses.
Dance around the bullshit of people you worship all you want. Me? I can't stand the smell.
Read my post.
The entire point of it being quantum means nothing.
If someone has the key, you won't know.
If someone doesn't have the key, you often won't know because they can fudge around in that tolerance level, and you'll just resend your message anyway because the network is not reliable, etc.
The only practical application which would give you any benefit from the quantum nature would be a dedicated circuit for each host pair. That is simply not feasible.
All.
Digital.
Security.
Ever.
Boils.
Down.
To.
A.
Key.
Sharing.
Problem.
The intertrons is a switching network, not a mass of dedicated circuits.
If you want to take someone down, you probably want to make sure that they can't re-route around your cut, and you probably want to do it without taking yourself down.
Are you proposing that quantum communication gets adopted and we actually have dedicated circuits for every host pair?
Uh, read my entire post please?
And someone has to successfully eavesdrop for that protection to kick in. You can't control when they'll eavesdrop, so information can still get out, so it's far from a "secure" communication channel.
And with a noise tolerance of X, eavesdropping without being detected is not only possible, but likely very easy. Remember that Alice has to generate noise-free signals in the first place. Alice isn't made of magic. Eve can do anything Alice can.
And if you have a perfect network and zero tolerance, all eavesdropping attacks simply become denial of service attacks.
Alice: Hey Bob, let's talk.
Eve: Looks like Alice and Bob are gonna talk.
Bob: Sorry Alice, can't talk. Someone might be listening in. Maybe try again later?
The core idea of using quantum communication security (or, in general, quantum communication) is that you'll be able to tell when the message has been altered.
All a man in the middle attack has to do is read the message, recreate it, and send out a spoofed message instead of the original message.
Reading the message is trivial.
Recreating the message, while introducing tolerable levels of noise is trivial once you have the key. Alice does it all the time.
Blocking the original message is not trivial, but it is also not hard. It just requires physical access to the network. Be it jamming a wireless signal, splicing your attack node between two routers, whatever.
Sending out the spoofed message is trivial. The internet is slow and laggy. You can easily read, alter, and resend the message without the delay being noticed.
The only thing stopping a man in the middle attack is the need to have the key to resign an altered message as to make it appear that it came from Alice. This is a key-sharing problem. All digital security problems boil down to a key-sharing problem.
The only thing the quantum nature of communication adds is the ability to detect when people might be listening. This only gets around eavesdropping, not an actual MITM attack.
Indeed, the quantum nature of the "security", as this paper shows, actually opens the door to attacks, as the communication medium is not perfect and there is now a threshold for tolerable noise. Attacks can play around in that threshold all day long.
Like it or not, in a society of billions "normal", by any measure, matters.
What about someone whose intent is genuine, but whose ideas are considered absurd by the masses?
Wow, that sounds almost as bad as Global Warming!
(The above statement is dripping with sarcasm. Because Global Warming is bullshit, you see.)