I was thinking that about 2 months ago. And then I saw people doing bikepacking/long distance bike touring, and I was quite amazed. With wide enough tires, adequate tire pressure control and seat suspension, people ride huge distances with no problems, on old fashion dirt roads.

https://www.youtube.com/watch?v=_QSrBIIC4po

The reason I linked a bike above was that they truly are a modern marvel. So unassuming and yet so flexible, reliable and overall... powerful, plus cheap by modern standards. A bike is probably the most accessible high tech modern invention that we take for granted.