Fascinating, terrifying video. Vikings had some serious courage to embark on those voyages.
10 minute video of building a “dragon ship”. They were definitely craftsman who understood the sea.
https://www.youtube.com/watch?v=29mOXuVoE3o
Totally amazing, what smart people can do without electrical power, much less electronics or computers.
We think we are so smart. We’re not.
And when the power goes out, and the computers, electronics and electrics disappear, who will be smart enough to accomplish such things?