Solving a 4x4 by reducing it to a 2x2?

[~Adam~]

I did this in ~6 minutes once. (Sighted)

LOLing because you had to specify.

 

[cfcuber]

I've gotten partway through. Is it even possible to do this?

 

[DAoliHVAR]

I've gotten partway through. Is it even possible to do this?

did you not read the rest of this thread
turns out its not only possible,but quite easy as well lol.
but you have to have a good knowledge of commutators