@edgarblythe,
China always does **** without thinking it through. That, plus their love of shoddy workmanship should make a trainride across the Behring Straits a real adventure.
I worked along the Aleutian archipelago and I gotta tell you that stretch of islands is about as long as the entire lower 48 of USA. Thered probably be a hundred bridges or more and building a bridge to last in such a climate would be a real challenge to do it right.
Itd be like the Concorde, neat to talk about but what purpose would it serve?