Obviously this page isn't total nonesense, but I thought I'd make a provacative statement in line with Go Seigen's teaching. From a brief read over the outlined theory are we basically saying the following "Don't attack thick groups". If a group is sitting in a blue area, with access to a yellow area, it is pointless to try to profit from action against it. So we need a diagram of a 19x19 board with the blue and yellow areas marked on it.