Basically the title, you need to use the skills you have now and be a productive member of society.
I don’t mean go back and show the wheel or try invent germ theory etc.
For example I’m a mechanic i think I could go back to the late 1800s and still fix and repair engines and steam engines.
Maybe even take that knowledge further back and work on the first industrial machines in the late 1700s but that’s about it.
I can pick things up and put them down, so as long as there’s things that need picked up and put down I’m good.
I hear Sisyphus is looking to train his replacement. In fact, he says it’s a pretty cushy job, as there’s not need to pick things up, and definitely no putting them down