I mean it could have impact on the real world, the same as seriously discussing “can we still do algebra with the imaginary result of taking the root of -1”. Apparently that was purely theoretical nonsense until we noticed that that allows us to do some very cool stuff in the real world.

If everyone in the hotel starts rebuilding their room, is it still the same hotel and does it still have the same capacity to hold guests?

Apparently the important question is: how many ships of Theseus did we accidentally create?

Is it pointless to consider and debate the characteristics of “what makes a person to be the same person”? You seem to say, as long as it’s the current lump of biomass has been formed by a past lump of biomass, it’s the same person. Assume I cloned a person, is that the same person? Does a person become a different person when they replace a lot of organs? Or is it only the brain that is important?

Also: don’t diminish people having fun over theoretical debates by calling them insane. Let people have fun.

I mean you’re basically arguing for parental control, it is just done by google.