User blog comment:MilkyWay90/I'm ready for the easiest OCF!/@comment-35470197-20180821012104/@comment-35470197-20180823003221

> BTW it seems that I've been confusing Buchholz's OCF with another system.

Maybe many googologists are comfounding Buchholz's OCF with other OCFs, because it works in a similar way if we only use \(\psi_0\) and \(\psi_1).

> Interesting tidbit

I am also interested in that phenomenon. In addition, I wonder why UNOCF works in the different way above BHO, although it is expected to be an addition-based OCF as Buchholz's OCF is.