Giant kites could pull cargo ships across the ocean
cnn.com“Dr. Richard Pemberton, a lecturer in Mechanical and Marine Engineering Design at the University of Plymouth, in the UK, believes that “there’s an absolutely no question that it’s technically possible” for the technology to work.”
I believe that Dr. Pemberton is correct: wind-powered sailing technology was invented around 3500 BC. [0]
[0] https://www.sspa.se/en/news/bbc-documentary-wind-powered-shi...
what about manufacturing things locally, so they don't have to be transported across the ocean?