Are captures best only ~60% of the time?

[petero2]

2) 99.999% of all positions in the tree are not 'typical midgame positions'. In fact the typical position in the tree looks nothing like it; usually both sides have multiple hanging pieces, because one player (on move in the all moves) plays like a random mover (trying even the most idiotic things), while his opponent plays like a turn passer (doing only null moves instead of punishing all the blunders).

That might be true for an engine with no forward pruning, but it is certainly not true for my engine, see:

forum3/viewtopic.php?f=7&t=70706&start=10#p798489

I don't think it is true for any engine of similar or higher strength than Texel.