Last month, supporters of a proposal to build an undersea tunnel to link Alaska with Russia renewed their efforts. Such a tunnel, if completed, would be more than twice the length of the Channel Tunnel which links Britain to France.
Presently, debate ensues over a proposal to build an undersea tunnel to link Japan to Korea. Such a tunnel, if completed, would be more than four times the length of the Channel Tunnel.
The fact that the concerns over the practicability of these projects are all mainly economic in nature proves the technical feasibility to have ceased to be an issue. But those economic concerns aren’t small. Eurotunnel, the company which manages the Channel Tunnel, still operates in the red.
Let’s airily assume that all economic problems involved in undersea tunnel construction and management can be happily resolved. Would there then be anything preventing us from building a tunnel from California to Hawaii? A transatlantic tunnel? A transpacific tunnel? Actually, I would not expect to see any of those until something like so-called Vactrain technology can be realized. Who wouldn’t like to be able to travel from London to New York in less than an hour? (Hey, why is Khalid Sheikh Mohammed raising his hand?)
H/T to Japundit