There is also this blog post from 2007 by the same author with some math tricks, very neatly explained (it is Terence Tao after all...): https://terrytao.wordpr

There is also this blog post from 2007 by the same author with some math tricks, very neatly explained (it is Terence Tao after all...): https://terrytao.wordpress.com/2007/09/05/amplification-arbitrage-and-the-tensor-power-trick/ https://terrytao.wordpress.com/2007/09/05/amplification-arbi...