[adrianN]

If people didn't have to work, the unappealing work that still needs to be done would probably pay a lot more than it does today.

[Siecje]

But it might not be worth it, to make that bearing more efficient if it costs more.

[adrianN]

True, but maybe such inefficiencies are counteracted by the increased number of people in fun jobs. Maybe it suddenly becomes worth it to do things we're currently not doing.