User blog comment:Syst3ms/YAUD/@comment-30754445-20180810132619/@comment-35392788-20180812095727

First off, sorry for the harsh comments yesterday, I was in a bad mood.

Then, having to give a fixed value to everything would make \(\psi_M\) not be "something" that is eventually collapsed later. It's required for it to be a sort of "atomic expression"