Financial markets have a fascinating property: any well-known strategy that can be implemented at reasonable cost [0] stops working. This is because people implement it and the profit goes away. If Jane Street has a common sense strategy or three that makes money, they’re not telling you about it.
(I’m taking about actual market profits here. It is well known that you can make lots of money by charging fees on a lackluster fund as long as you can find investors.)
[0] The cost issue is real, and the relevant parameter is some combination of profit (revenue - opex), capex and risk. For example, one can make money (revenue) by being the fastest market on the block. But the revenue there is approximately bounded and competition has driven the cost up to insane levels, so it is not straightforward to do this profitably.