Those buildings survived, lots of haphazard buildings were not crafted, but bungled together overtime, most didn't survive; so there is a selection bias at work

Those buildings survived, lots of haphazard buildings were not crafted, but bungled together overtime, most didn't survive; so there is a selection bias at work. I actually like the imperfections. I would prefer that we build and tear down so that our cities are dynamic as opposed to creating things that can never be changed and never adapt. Sometimes that's ok, but if that is the only way we build, large areas will end up stuck in time and useless.