User blog comment:PsiCubed2/Help Me Understand Ordinals Beyond the BHO/@comment-27516045-20170220175334/@comment-30754445-20170220201754

Those are two completely different expressions.

I'm asking for an explanation of why they should have the same value.

Is psi_1(psi_2(0)) = psi_2(0)? If so, what (uncountable ordinal) do they both represent?

(please, only answer if you're sure of the answer. I don't want people to guess something "reasonable" which ends up confusing me because it turns out to be wrong)