The how is not the issue, the why is. And for the how, just limit the number of transactions one can do per second or the money one can exchange per second. Th

The how is not the issue, the why is. And for the how, just limit the number of transactions one can do per second or the money one can exchange per second. Then everyone will have to be smart instead of being the one with the best connection. Or split the markets in "Joe invests" market and "Bigcorp" invests. Whatever scheme is defined as "stock exchange" can surely be fixed by another scheme. Humans have been inventing games and agreed to rules for centuries, it's not like it's something we can't do.