Cofty said:
Its possible cult members only use 10% the rest of us use all of it.
Its astonishing how often we still hear that cannard.
It's just another JW version of the urban legend that they want to believe, an appeal to their egos to fantasize how smart they will be in the New System. And what exactly do they think they'll be using all that brain-power for? Are they going to allow college in the New System?
YHWH will provide for all their needs, from clean energy to perfect nutrition, healthy perfect bodies (no doctors needed), so there will be little real thinking needed: the highest level cogitive skills needed all just be those for technician-level work.
On second thought, that might seem pretty appealing, if you're currently only educated for washing windows/janitorial service....