> I'm still not sure what problem removing my ability to cross the spread whenever I like is meant to be solving. What problem does it solve? Why should we hav

> I'm still not sure what problem removing my ability to cross the spread whenever I like is meant to be solving. What problem does it solve? Why should we have so many expert programmers and mathematicians spending their time competing in a 0-sum game that could simply run a bit slower and produce the same societal value?