In the same vein, does the Kiel canal mean the Denmark is an archipelago instead of a peninsula + islands?

And the Panama canal is when America became two continents? :D

It's already done.

This plan would cost trillions, benefit no one and have devastating consequences for millions of people.

Oh so another ai company then

Europe and Asia are the same continental mass but Africa is not. Africa is moving independent to the Eurasian continent and is even slowly producing a new continent at the horn of Africa. So yes, it's true that Europe and Asia are the same continent but Africa is not. It is also slowly moving into Europe. That's why the Alps exist.

America is also the same landmass. Just has some water inbetween.