hot swapping and migration are extremely well solved problems in software... the reason you see it screwed up so much as that few people actually care about it

hot swapping and migration are extremely well solved problems in software... the reason you see it screwed up so much as that few people actually care about it at all. i'm convinced that fear and lack of understanding are the genuine problems here... browsers and the webstack are fantastically shoddy and poorly engineered though and that is a serious obstacle... but it doesn't make the problem intractable or hard. 'just' effort.