3 ms·
"Numbers every programmer should know"- Probably the most interesting part of that article is the slider. As you move it up and down, you can see how all the di
by mabbo 13y ago
"Numbers every programmer should know"- Probably the most interesting part of that article is the slider. As you move it up and down, you can see how all the different things get faster over time.
... Except for the final one, "Packet Roundtrip". Networks have reached a physical limit of the universe, the speed of light.
http://www.eecs.berkeley.edu/~rcs/research/interactive_latency.html http://www.eecs.berkeley.edu/~rcs/research/interactive_laten...
- tinco 13y agoThere is no law that says that information can not travel faster than light is there? The law is just a out mass/energy. On top of that I believe faster than light transfer of information has already been experimentally shown to exist.
- pdonis 13y ago> There is no law that says that information can not travel faster than light is there? Yes, there is. Information has to be carried by some form of mass/energy, so if mass/energy can't travel faster than light, neither can information. > I believe faster than light transfer of information has already been experimentally shown to exist. No, it hasn't. If you're thinking of the CERN neutrino experiments a couple of years ago, that turned out to be an equipment error.
- mschuster91 13y agoHmmm... shouldn't two linked quantum particles change their state in sync, no matter the distance?
- legulere 13y agoYou can't transport information through quantum entanglement.
- mdemare 13y agoI don't think so; see: http://lesswrong.com/lw/q2/spooky_action_at_a_distance_the_nocommunication/ http://lesswrong.com/lw/q2/spooky_action_at_a_distance_the_n...
- pdonis 13y agoIt's worth noting that the full explanation given here assumes that the many-worlds interpretation is correct, which not all physicists would agree with. But the "no-communication theorem" is true independently of which interpretation of QM you adopt.
- pdonis 13y agoThis is a non-relativistic description. The correct relativistic description assigns quantum field operators to events in spacetime, and operators at spacelike separated events commute--i.e., they give the same results regardless of which order they occur in. So there is no physical fact of the matter about the order in which the particles "change state".
- nulterm 13y agoThere was this[0] relevant post on HN a handful of days ago. [0] http://strilanc.com/quantum/2014/05/03/Storing-Bandwidth-with-Superdense-Coding.html http://strilanc.com/quantum/2014/05/03/Storing-Bandwidth-wit...
- Terr_ 13y agoNo, there are still some areas where we can make gains, practical speeds are still below c.