[guscost]

HFT is so latency-sensitive that it matters how physically close you are on Manhattan island.

It is so latency-sensitive that new “hollow” fiber-optic cables are being installed, because light moves faster in air than in glass.

[vntok]

See also how they slow down the whole network to level the field: https://hackaday.com/2019/02/26/putting-the-brakes-on-high-f...