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A $20 trillion concept proposes a 3,400-mile underwater tunnel connecting London and New York, potentially reducing a 7-hour flight to a 1-hour train ride.Science and facts💡

A $20 trillion concept proposes a 3,400-mile underwater tunnel connecting London and New York, potentially reducing a 7-hour flight to a 1-hour train ride.Science and facts💡
A $20 trillion concept proposes a 3,400-mile underwater tunnel connecting London and New York, potentially reducing a 7-hour flight to a 1-hour train ride.Science and facts💡

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