Thanks, your comment is a very clear formulation of the reason why I wrote the post. Probably even better than the post itself.

I'm halfway tempted to write yet another post about complexity (maybe in the discussion area), summarizing all the different positions expressed here in the comments and bringing out the key questions. The last 24 hours have been a very educational experience for me. Or maybe let someone else do it, because I don't want to spam LW.