Crypto Derivatives - What's the Landscape Like?

The first crypto derivative exchange was run by a russian guy. He invented these bit coin margined contracts that they had to solve the problem of, how do you offer leverage without having a clearing house standing behind you? And so they kind of created the real time margining systems that you see used to day by most of the matro cryptodrives exchanges. They did it in an environment where crypto was probably in the double digits or maybe even single digits. But yet, it was really this really incredible transformation from icy bit to the chinese exchanges,. okx and whobe, and also seven nine six - which is the dirivatives exchange that almost no one remembers but they