> I often like to fantasize how would I fare if I found myself suddenly transported into medieval times or earlier
I wonder the same. If I was suddenly teleported to the middle of a forest, without anything, not even my shoes and clothes, and no chance of any contact with civilization again, what SHOULD my first few tasks even be??
Imagine a modern human, ideal in health and strength and faculties, and immune to disease or aging, teleported butt-naked to a copy of the planet Earth where there never had been any humans — so no chance of radio, or rescue choppers seeing your smoke signals, or finding any technology that you didn't make yourself.
The only thing that person has is a version of Wikipedia in their brain, so they know how everything is built and how nature works.
How long will it take for them to resch current levels of technology, and be able to construct a device like the one you're reading this on? Would two people make a significant difference?
How would you fare in that situation?