Sorry, I think I still just have to disagree. Look at what a car or modern ship is made of. Nothing in it could be reproduced by a stone age civilization. They

Sorry, I think I still just have to disagree. Look at what a car or modern ship is made of. Nothing in it could be reproduced by a stone age civilization. They could maybe make a wheel out of wood which would be a technology they didn't have but honestly I'm inclined to believe the reason why pre-animal-husbandry civilizations didn't use the wheel is because it's mostly useless with nothing to pull it. You really need the wheel plus draft animals plus roads to actually do anything otherwise the terrain is just too rough for a person to pull or push a small cart very far and it's easier to just use a frame pack or basket on your head or back.