How heavy are the pieces? That would be a nice workout.
Has anyone ever thought of playing blitz chess on gigantic size chess board

Or bullet! And both players would be out there running around at the same time, barely even having time to see what their opponent was doing...
Yeah that would be funny to watch

Although there wouldn't be any touch move. (I guess you could but it would make it really hard not to bump into another piece.)

Okay, maybe they can hold stopwatch-type thingies that would be in sync. And you can stand wherever you want on the board, right?--as long as you're not blocking your opponent's view...
You could stand wherever you want, and if you're blocking your opponent's view they'd have to move to a spot where they could see.
You know those boards where pieces are as tall as the humans. Imagine if you could play blitz chess on that. It would actually make chess athletic.