User blog comment:Billybob-mario/Hyperrecursion of Uncomputable Functions/@comment-4224897-20150427222636

oh god are you the same guy who created gigoombaverse, that infamous salad number?

anyway, the thing you're proposing is a great example of a naive extension (one of the major sins of googology), an extension to a powerful function that only uses basic recursion. feeding the FOOT function upon itself won't get you any recognition in googology, because while it's easy to come up with recursion like this, it wasn't easy to come up with the FOOT function itself that you base your naive extension upon. so you should really instead build a large number notation from scratch, from a weak function like addition, exponentiaton, or maybe up-arrow notation.