I saw this really interesting idea a looong time ago: https://www.popsci.com/scitech/article/2004-04/trans-atlantic-maglev/ https://www.popsci.com/scitech/arti

I saw this really interesting idea a looong time ago: https://www.popsci.com/scitech/article/2004-04/trans-atlantic-maglev/ https://www.popsci.com/scitech/article/2004-04/trans-atlanti... and, personally, $175 billion felt like a lot back then but if it's still in the ballpark doesn't seem that unfathomable today.