Was thinking about this as well. In the interview he talks about the act of making a trade moves the market itself. You can't create too much trading volume or

Was thinking about this as well. In the interview he talks about the act of making a trade moves the market itself. You can't create too much trading volume or you will have distorted the market so much that you can't trade effectively after. I would imagine he can move and make money at a certain volume (a bank roll of 200 million) and guarantee returns because that level won't distort. But if he had hundreds of billions he couldn't guarantee returns because the moves he would have to make would be so large as to distort the market beyond their measuring. Much like the observer effect in physics, possibly a trader's effect here.