To crazybayman-
No one can predict the future.If it don´t erode then some other things will happen.
It don´t matter.
If we see the channel from space it means that the elevation is different making it impossible to be on the present.End point.
What about this crazybayman? It is waiting for your answer.

And no,I am no arrogant.Not a little bit.That was an allegory.Duh!