It is unlikely, due to the high costs of such projects. On the other hand building bridges that connect every continent has been proposed by engineers for some years now but only as a concept. Bridges would be cheaper to build than tunnels. But in the future we might be driving cars that fly or find other ways of transport that is much faster than current systems that might change the way we travel. One such travelling system might be high speed magnetic trains already being used in many countries around the world.
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