If you get really good at 2D chess then you'll be in a worse situation in 3D chess.

If someone makes a move in 3D, they'll route around you in a way that feels impossible.

As you get even better at 2D chess, you'll get more confident, but there's an invisible move that will destroy you.

Optimization in one dimension has made you fragile in another.

There's always a higher dimension than the one you sense.