User blog comment:Sbiis Saibian/Googology101 - Part I/@comment-202.86.32.122-20150802042954

There seems to be a contridiction, in my mind about non-computable numbers. If a number cannot be computed such as FOOT, Rahlo's number or FISH 7, then to me, it seems it is undefined, even though it is still finite.

Loader's number, on the other hand is calculated by definite rules and therefore seems a better candicate to be included in googology.