"The world wouldn’t be $78T richer, it would be $78T poorer because it would lead to widespread civil war"
Nope, 90% of people would stay where they are. Most people don't like migrating: to uproot yourself and your family from the land, culture and language you love is a big deal and people only do it when the have no other choice.
and fluoridation doesn't affect dental health because you're drinking the water which means the fluoride doesn't get to the teeth but is absorbed elsewhere in the body. If you want fluoride you can get it through toothpaste. It should be a choice.
in "The Difference Engine", Lovelace & Babbage's work is accelerated and cinemas show movies with giant screens made of programmable-cloth with coloured rotating beads as pixels