That's a terrible analogy, because everything we're doing, every day of our life, is essentially like tinkering with no backup. If you could take a backup of o

That's a terrible analogy, because everything we're doing, every day of our life, is essentially like tinkering with no backup. If you could take a backup of our brain from then it would be a common recommendation to take a backup before driving. If you think along those lines, you could end up concluding that you shouldn't do anything fun or explorative if there's any significant risk at all.