Somebody at work pirated a copy of Loderunner on a 5.25 floppy disk, and it ran fine on all of our two-floppy-disk PCs. It would not run on my Compaq Portable Plus, with its 10 MByte hard disk. For a while I resorted to opening the computer up and unseating the hard drive controller card in order to be able to play the game, but that got old (and I was afraid I would eventually break something). I used debug to figure out where the boot code on the Loderunner disk was going wrong, and made myself a patched copy of the game disk. That was my first hack, and still one of my favorites.
This effect, whatever you want to call it, is well known. It was known before Heisenberg discovered its impact on atomic physics and lent his name to that narrow application of it.
You can't measure anything without perturbing it. You can't measure the voltage on a circuit node without altering it. You can't measure the current in a conductor without altering it. You can't measure public opinion without affecting it.
However, when it comes to measuring physical quantities such as voltage and current, the more money you pay for the measuring instrument, in general, the less it perturbs the quantity being measured. And one of the very important specifications of such measuring equipment is exactly how much effect it has upon the DUT (device under test).
But I don't think traceroute has any spec for how much it perturbs the network while trying to measure it.
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Somebody at work pirated a copy of Loderunner on a 5.25 floppy disk, and it ran fine on all of our two-floppy-disk PCs. It would not run on my Compaq Portable Plus, with its 10 MByte hard disk. For a while I resorted to opening the computer up and unseating the hard drive controller card in order to be able to play the game, but that got old (and I was afraid I would eventually break something). I used debug to figure out where the boot code on the Loderunner disk was going wrong, and made myself a patched copy of the game disk. That was my first hack, and still one of my favorites.
> Did anyone ever think about what these maps could be used for?
Well I dunno, but I think they make dandy wallpaper.
Come back later? But this is the Internet!
This effect, whatever you want to call it, is well known. It was known before Heisenberg discovered its impact on atomic physics and lent his name to that narrow application of it.
You can't measure anything without perturbing it. You can't measure the voltage on a circuit node without altering it. You can't measure the current in a conductor without altering it. You can't measure public opinion without affecting it.
However, when it comes to measuring physical quantities such as voltage and current, the more money you pay for the measuring instrument, in general, the less it perturbs the quantity being measured. And one of the very important specifications of such measuring equipment is exactly how much effect it has upon the DUT (device under test).
But I don't think traceroute has any spec for how much it perturbs the network while trying to measure it.