In today's world we are privileged with first world problems. The Egyptians had to build pyramids by hand, the Greeks had to conquer the world on foot, and today our biggest obstacle is getting to the grocery store without Google Maps.
I can never seem to get the temperature of my shower just right. It is always too cold or too hot and every little turn that I make of the faucet makes the temperature jump like 50 degrees. Shouldn't we have a way to just punch in a number on the faucet so it can just get it right every time by now?!