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1 day agoEverything that was destroyed by leaking alkaline cells or stripping the battery door screws. LR44-powered toys were the worst.
It’s good that we don’t use mercury in button cells anymore, but it was exactly mercury that inhibited the off-gassing reaction that eventually leads to leakage.
How detailed would the memory of past lives be? If it’s good enough, school would be very different, if not obsolete.
We would also have a lot more answers, or at least a consensus, on natural and anthropological history.