Just because we don't know whatever low tech methods were used doesn't make it magic. There's a video of a guy moving multiple ton bricks in his backyard easily

Just because we don't know whatever low tech methods were used doesn't make it magic. There's a video of a guy moving multiple ton bricks in his backyard easily using some rods to act as a conveyor built. It's not something we tend to think about anymore as we have much better options now. Given a little time though and people will figure out low tech solutions. Look up "wallywallington" on YouTube and see how trivial moving incredibly heavy things can be with simple leverage.