User blog comment:Planetn9ne/What do you need to create an OCF?/@comment-30754445-20181122005506

Why would you want to create an OCF?

A far better use of your time, I think, will be to learn how to use the OCFs that already exist. You could start with Madore's Psi.

One thing to keep in mind, is that OCFs are not googological notations. The whole point of OCFs (and the source of their immense power) is the fact that they allow us to define ordinals without explicitly building them in a step-by-step fashion. So having a super-strong OCF at our disposal does not automatically yield a super-strong notation for large finite numbers (which does require a step-by-step process to work). OCFs are still quite helpful, though, in that they give us the language we need to speak about the large ordinals they represent (and the ability to discuss these ordinals sometimes does lead to the discovery of the step-by-step rules needed to build them).