[julosflb]

Although I don't necessarily share your tone, I share some of your ideas.

https://www.lowtechmagazine.com/2021/05/how-to-design-a-sail... is worth reading. Basically container ships are incredibly energy efficient. If we want to go back to sailing ships for cargo, then we need to massively scale down global exchanges.

Now on a positive note, if we find some devices, easy to operate, low cost and that can save few percent of fuel (being fossile or green), then that could still be useful.