We've been dealing with speed of light issues for over 20 years in the financial world. And telecom.
Someone recently built a new fiber route from Chicago to NY because it was just a touch shorter. The distances are down to hundredths of a ms. > On Jul 25, 2016, at 17:41, Bob Camp <[email protected]> wrote: > > Hi > > In these days of computers trading with computers, the whole issue of “who > did what when” can > result in major money trading hands. I’m sure that at some point the > financial markets will have to > deal with light speed issues and geography if they have not already. > > Bob > >> On Jul 25, 2016, at 4:57 PM, Mark Sims <[email protected]> wrote: >> >> Apple's new file system timestamps files with nanosecond resolution. A lot >> of Linux file systems also do that now. The nanosecond ain't what it used >> to be... I can imagine people wanting picosecond timestamps in the near >> future. Who knows, maybe we'll have something like NTP compensating for >> light-speed delay for the gap between the read/write heads and disk surface >> (assuming we still use heads and surfaces) ; -) >> -------------------- >> Except that you still have the issue of “what time did this file get >> changed”. To most of us, that’s not really a big deal. A second either way … >> who cares. >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
