From a zulip thread i started by Lokathor
Note: function pointers are not always aligned, though some platforms may have them be aligned
Anyway: the standard library docs say "check the nomicon"
then the nomicon says "here is some advice and ultimately we don't know, maybe check UCG"
then UCG says "ultimately we don't know it's probably like this but there's no RFC yet"
then Ralf says "probably it should be allowed if the layout matches".
I found this pretty funny
Not sure whether to include the first sentence or not, you decide