C J Campbell wrote:

You are going to die if your MX-20 fails?

That was in a Futurama episode. They'd gone back in time to a point before
GPS. As the ship approached Earth, warnings sounded. No GPS, Navigation
failing, the ship was going to crash. "Not if I can help it", says Leela
the pilot. Then the engines power down. "Oh. I guess I can't."

Yep. The GPS is that important.

Laugh

- Andrew