Maybe the open problems are just by nature non-elegant and we human beings are bad at non-elegant mathmatics and found them either hard or not interesting before.
I think here in China we are not super fan of roundabouts. But we got a 4-lane roundabout with traffic lights [1] and a roundabout on elevated roads with traffic lights. [2]
Well you see, it has to implement IStateful and IBooleanExpression, and both of those involve virtual methods so you have a vtbl pointer as well.
So that's 64+1 bits right there.
Then you also have the address-alignment requirements for that vtbl pointer, so practically speaking were talking 128 bits.
Or 80 bits of you're rolling dirty and say "screw it" to that alignment assumption.
Now if your on x86-64 and want to smuggle that bit value into the unused part of that "64" bit vtbl pointer, you could probably bring it down to just 64 bits overall I guess. Well probably want to let the compiler know about that though, before anyone tries actually using that vtbl pointer.
But, if we also need to make this accessible to Python, then...
As a Chinese, I would say most public toilet I came across are cleaner then the toliet in my home... Before 2015, I was young, a bit shy and hated dirty toilets so I rarely go to toilet outside. (Also at that time I lived with my father and he kept our toilet really clean. <3) When I was like 8 years old (at 2000s) or younger, I once pee in my pants at school because I really didn't want to go to the toilet in the school... I think that is the last time I pee-ed myself.
So I would say it did work.
But TBO I moved to Shanghai after university which is generally richer than my hometown so I'm not sure about the condition in my hometown nowadays.
