A heuristic I often apply (to lots of things) is 'would my Mum... <understand...?> <be able to do...?> <notice...?> <care?>' - as my Mum is reasonably smart and

A heuristic I often apply (to lots of things) is 'would my Mum... <understand...?> <be able to do...?> <notice...?> <care?>' - as my Mum is reasonably smart and capable, but not at all embedded in any of the technical worlds that I am. e.g. - if my Mum could understand my presentation, then I've found a good level for non-specialists to also understand it quickly To apply it in this case, would my Mum notice or care about the difference between a 60Hz and 120Hz phone screen? I'm pretty sure not, and therefore I'd extrapolate that a vast majority of Apple's userbase wouldn't either.