Big expensive machines, which require training to operate, and have big manuals full of pages and pages of "Danger: failure to follow correct operating procedures may lead to injury or death."
I would really love to have a custom manual showing correct min/max/optimal operating parameters for sleep, warmth, hugs, food, etc. Especially if people would have to keep to it.
And then instead of getting angry when someone doesn't do what they want (or getting angry at themselves for failing) , people would have to accept that they violated the commonly accepted operating procedures -thereby exceeding the tolerances of the system- and should do better next time.
Wouldn't that be a huge improvement over how things work now?