by mtuandrew
With the proper application of cash and political goodwill, customs shouldn't need to be such a bear from China to Russia to western Europe. The break-of-gauge problem is thorny, but could be solved by either the Spanish system of quick-change bogies and sliding axles, or by building an intermodal yard with enough gantries to transfer a full load of containers from one train to another within an hour. Neither problem is really unsolvable with today's technology, if you felt it necessary to skip the boat ride around the Horn of Africa.
Even a Bering Strait tunnel/bridge and a Siberia-Alaska-Yukon Railroad would be feasible technologically. Financially though, it's a non-starter. I'd bet on high-speed container ships (30+ knots MAS) as a more practical and far less capital-intensive option, though I don't have any connections to either the railroad or the shipping industries.
Even a Bering Strait tunnel/bridge and a Siberia-Alaska-Yukon Railroad would be feasible technologically. Financially though, it's a non-starter. I'd bet on high-speed container ships (30+ knots MAS) as a more practical and far less capital-intensive option, though I don't have any connections to either the railroad or the shipping industries.