And yes, why are they so sharp?
I seem to recall my wife having the plastic MacBook that came out circa 2006 and the edges on that thing were legitimately painful.
I always marvel at how sharp the points are on the notch of the lid on my current MacBook. Very very pointy.
they intentionally ship them sharp so you can file them down to your desired fillet
the design is very human
They are quite stabby and I hate them.
https://www.cnet.com/a/img/resize/aca51a7051edc493b19cfd93da...
I have intrusive thoughts of trying to cut my finger over it, but so far the attempts were unsuccesful.
And yes it is a corner (or vertex), where two planes meet. Edge can also be correct, but corner is not wrong.
Unibody Intels before that were really really sharp.
«During the first Jobsian era at Apple, I used to joke that Steve Jobs cared deeply about Apple customers from the moment they first considered purchasing an Apple computer right up until the time their check cleared the bank.» (Bruce Tognazzini)
They still sell computers, which count below 10% of the revenue, and are also partly fashion accessories.
Alternatively, because they care about aesthetics more than utility and comfort.