"does this also mean that remaining crypto-coins can be instantly discovered?"
No, that's not how the minting of new coins work, at all.
There are theoretical issues where someone might learn your private key from seeing a transaction, but they're mitigated for all new addresses and usage.
“It is helping to save the Small Aral sea,” says FitzGerald. “But it was also a death warrant to the Big Aral, on the Uzbek side. People on the Uzbek side are very angry about it. The dam shut the only source of water that was entering their sea.”
"What does seem to have contributed to the abandonment of the Western Settlements, archaeologists said, is climate change. The onset of a ''little ice age'' made living halfway up Greenland's coast untenable in the mid-1300's, argues Dr. Charles Schweger, an archaeology professor at the University of Alberta, who has studied soils around the Farm Beneath the Sand.
Dr. Schweger said the Norse were no match for cooling temperatures, which caused a glacier several miles up a valley to expand. As this glacier grew, it also released more water every summer into the valley, causing turbidity in drinking water and raging floods that blanketed meadows with sand and gravel. Today the edge of Greenland's ice cap is only six miles from the old farm site. But in the mid-14th century, it probably was far closer."
My prosopagnosia is pretty severe (had a medical event in 1998, applies to everyone I've met after, none I met before) - and while I mostly do the same I still really long for the pretty AR glasses with cameras that will give me back the same capabilities that I had (and others have).
I don't know about moron - I happen to know very well about those mining centres in Iceland and Sweden for example. I do like my facts a bit sourced though.
The country accounts for more than two-thirds of the world’s processing power devoted to bitcoin mining.
These mining companies started making contingency plans earlier this year to move their operations to other countries. I do not see a sudden drop of 66% of the hash rate, no.
A Beijing-based mining firm told Quartz in November that it is scouting for backup options in Sweden and Canada for the tens of thousands of mining machines it currently operates in Xinjiang
From the description (regarding the kernel slide part only):
The technique explained below has for some reason stopped working on macOS High Sierra 10.13.2. I don’t know why and I didn’t bother to investigate, but the IOHIDFamily vulnerability is still there all the same. So while the hid binary in its current state will only work up to 10.13.1, you could just patch together hid and leak to get everything working on 10.13.2 - or even write a mach-port-based exploit out of leak, I hear mach ports are the real deal.:P
No, you could not. The only reason Bitcoin solves the famous Byzantine Generals' problem is due to the amount of work that goes into its Proof of Work.
Central planning sucks at anticipating demand / huge differences between rainy season and dry season / China is big and the distances to other regions that would need the energy is too great
"China has an enormous surplus of electricity that can be harnessed for mining. In 2016, for instance, overcapacity from hydropower stations in Sichuan and Yunnan amounted to a whopping 45.6 terawatt hours. To put that into perspective, the entire US generated 4,100 terawatt hours of electricity in the same year.* By partnering with these power stations, cryptocurrency miners get access to discounted electricity rates in exchange for a cut of the mining revenue. Chinese miners aren’t the only ones capitalizing on surplus electricity either. A Russian company co-founded by Putin’s internet advisor is doing the same thing to drive down electricity costs, though Russia only has around 20 gigawatts of excess power to funnel into mining."
"Japan-based GMO Internet, an internet and technology conglomerate, has officially kicked off its cryptocurrency mining operation. The company has not disclosed the exact location of the new mine but acknowledged that it is based somewhere in Northern Europe. [...] The publicly listed firm hinted that as of today, the mine is drawing all its electricity from hydropower and geothermal sources."
As green as it gets.
(Also, energy usage and transaction volume are not correlated. Extrapolating Bitcoin's energy usage into the future is highly questionable to start with)
It's not profitable, of course, since the value of the network is in doubt if someone has such a majority. However, for the same reason there's a big incentive for others to make sure to increase their own stake.
No, just because someone reaches ~80% PoW temporarily that doesn't affect future immutability once such a hashrate superiority dips again. The same is still not true for PoS. Once someone gains superiority it stays that way.
I agree Ethereum is a good benchmark. Still no PoS switch in sight.
Of course it damages perception, but the integrity can be regained by others having more PoW than the attacker. The same is not true for PoS. Once the stakes cannot be trusted you cannot regain the trust.
The difference is that any "51% attack" (which in reality needs to be ~80% or so) is temporary with PoW. In PoS any catastrophic breakage in trust cannot be gotten back.
No, the reason PoS isn't popular is because it's provably insecure.
Contrary to a PoW-chain absent a +51% cartel, it’s mathematically proven that it is impossible to determine the “true” transaction history in a PoS blockchain without an additional source of trust. If a source of trust is always needed, a potential pandora’s box of attack and centralization scenarios is opened. This is a seed of truth behind the joke that Ethereum plans to use “proof of Vitalik”.
Slashdot Mirror
I have ten issued and not a single one of them was challenged.
I'm sure you're right.
However, my wife, a child psychologist, doesn't agree with you.
"Old man yells at clouds"
I have two kids, 6 and 3. They've had their own tablets since they were on year old. We put no limit on the amount of time they spend on them.
The future is not the same as your own youth.
"does this also mean that remaining crypto-coins can be instantly discovered?"
No, that's not how the minting of new coins work, at all.
There are theoretical issues where someone might learn your private key from seeing a transaction, but they're mitigated for all new addresses and usage.
https://en.bitcoin.it/wiki/Qua...
While I'm sure it wasn't the GPs intention, "effect" also works in that sentence.
effect can also be used as a verb to mean to produce or to cause to come into being
https://www.vocabulary.com/art...
“It is helping to save the Small Aral sea,” says FitzGerald. “But it was also a death warrant to the Big Aral, on the Uzbek side. People on the Uzbek side are very angry about it. The dam shut the only source of water that was entering their sea.”
http://www.bbc.com/news/resour...
The viking farms were not under ice.
"What does seem to have contributed to the abandonment of the Western Settlements, archaeologists said, is climate change. The onset of a ''little ice age'' made living halfway up Greenland's coast untenable in the mid-1300's, argues Dr. Charles Schweger, an archaeology professor at the University of Alberta, who has studied soils around the Farm Beneath the Sand.
Dr. Schweger said the Norse were no match for cooling temperatures, which caused a glacier several miles up a valley to expand. As this glacier grew, it also released more water every summer into the valley, causing turbidity in drinking water and raging floods that blanketed meadows with sand and gravel. Today the edge of Greenland's ice cap is only six miles from the old farm site. But in the mid-14th century, it probably was far closer."
http://www.nytimes.com/2001/05...
It's not a myth.
https://www.ncbi.nlm.nih.gov/p...
My prosopagnosia is pretty severe (had a medical event in 1998, applies to everyone I've met after, none I met before) - and while I mostly do the same I still really long for the pretty AR glasses with cameras that will give me back the same capabilities that I had (and others have).
I don't know about moron - I happen to know very well about those mining centres in Iceland and Sweden for example. I do like my facts a bit sourced though.
The country accounts for more than two-thirds of the world’s processing power devoted to bitcoin mining.
(from 4 days ago)
https://qz.com/1172632/chinas-...
These mining companies started making contingency plans earlier this year to move their operations to other countries. I do not see a sudden drop of 66% of the hash rate, no.
A Beijing-based mining firm told Quartz in November that it is scouting for backup options in Sweden and Canada for the tens of thousands of mining machines it currently operates in Xinjiang
(from the same article)
Yeah all countries with access to cheap hydroelectric as well as cold outdoors temperatures.
Canada: https://news.bitcoin.com/quebe...
Huge mining operations are already up and running, and more planned, in Canada, Iceland, Sweden and Russia. This will not disrupt Bitcoin.
https://www.hiveblockchain.com...
I don't think it's patched.
From the description (regarding the kernel slide part only):
The technique explained below has for some reason stopped working on macOS High Sierra 10.13.2. I don’t know why and I didn’t bother to investigate, but the IOHIDFamily vulnerability is still there all the same. So while the hid binary in its current state will only work up to 10.13.1, you could just patch together hid and leak to get everything working on 10.13.2 - or even write a mach-port-based exploit out of leak, I hear mach ports are the real deal. :P
The monorail is nice, I've used it several times. Last time we stayed in an airbnb at the very north end of the monorail.
However, the solution to the problem is obvious. Extend it to the airport.
(The reason that doesn't happen is that Vegas doesn't want to anger all the cab drivers ... )
No, you could not. The only reason Bitcoin solves the famous Byzantine Generals' problem is due to the amount of work that goes into its Proof of Work.
Central planning sucks at anticipating demand / huge differences between rainy season and dry season / China is big and the distances to other regions that would need the energy is too great
Pick one, two or three :)
2) Bitcoin miners are co-locating at hydro plants to get cheap energy.
case China and Russia: https://medium.com/@evawxiao/c...
"China has an enormous surplus of electricity that can be harnessed for mining. In 2016, for instance, overcapacity from hydropower stations in Sichuan and Yunnan amounted to a whopping 45.6 terawatt hours. To put that into perspective, the entire US generated 4,100 terawatt hours of electricity in the same year.* By partnering with these power stations, cryptocurrency miners get access to discounted electricity rates in exchange for a cut of the mining revenue.
Chinese miners aren’t the only ones capitalizing on surplus electricity either. A Russian company co-founded by Putin’s internet advisor is doing the same thing to drive down electricity costs, though Russia only has around 20 gigawatts of excess power to funnel into mining."
case Iceland: https://btcmanager.com/gmo-int...
"Japan-based GMO Internet, an internet and technology conglomerate, has officially kicked off its cryptocurrency mining operation. The company has not disclosed the exact location of the new mine but acknowledged that it is based somewhere in Northern Europe. [...]
The publicly listed firm hinted that as of today, the mine is drawing all its electricity from hydropower and geothermal sources."
As green as it gets.
(Also, energy usage and transaction volume are not correlated. Extrapolating Bitcoin's energy usage into the future is highly questionable to start with)
Please give an example of when "those in control of the hash power" decided to change something, and did.
The value of the computation is that it's what secures the immutability of the ledger.
Complaining about it is like saying the Internet wastes electricity because ... fax machines, or something.
It's not profitable, of course, since the value of the network is in doubt if someone has such a majority. However, for the same reason there's a big incentive for others to make sure to increase their own stake.
Again, something that's not true in PoS.
Not being able to outspend everyone else.
No, just because someone reaches ~80% PoW temporarily that doesn't affect future immutability once such a hashrate superiority dips again. The same is still not true for PoS. Once someone gains superiority it stays that way.
I agree Ethereum is a good benchmark. Still no PoS switch in sight.
Of course it damages perception, but the integrity can be regained by others having more PoW than the attacker. The same is not true for PoS. Once the stakes cannot be trusted you cannot regain the trust.
The difference is that any "51% attack" (which in reality needs to be ~80% or so) is temporary with PoW. In PoS any catastrophic breakage in trust cannot be gotten back.
No, the reason PoS isn't popular is because it's provably insecure.
Contrary to a PoW-chain absent a +51% cartel, it’s mathematically proven that it is impossible to determine the “true” transaction history in a PoS blockchain without an additional source of trust. If a source of trust is always needed, a potential pandora’s box of attack and centralization scenarios is opened. This is a seed of truth behind the joke that Ethereum plans to use “proof of Vitalik”.
(follow the links for the actual paper)
https://medium.com/@tuurdemees...