@ifixcoinops Not having everything in your house be one big appliance, so that when things fail, you don't lose everything all at once. There's a lot of redundancy in that setup, but remember, if you remove redundancy, you increase the consequences of failure.
@mhkohne nah, if the fridge's heat quits going into my oven then it'll just take as long to prewarm as it already does.
Machines can be made so that if one part stops working, it puts a note in the log and carries on going but a bit shittier. Most machines IRL work like that, except for the crap ones of course