Hot Tap Water...Faster

My wife loves to watch the show, "Shark Tank" where folks take out bad loans for worse ideas. I'm always daydreaming about how I can improve anything that I don't like or am annoyed with while I watch. I hate cold water from my tap in the morning, as I'm sure everyone else does. Sit there for a minute to wait and wait for hot water to shave, shower, etc. watching your hard earned money and perfectly clean water go down the drain. Not to mention the residual hot water gets trapped and cools as soon as you turn it off, waste of energy. I had a solution that could speed up hot water and waste less when it sits. There's some expensive commercial products that give you instant hot water but waste energy far more by having a secondary hot water heater close to the faucet.

So why not have smaller diameter, higher pressure plumbing in the home? You'd need a boost pump, small gauge pipe and a debooster at every hot faucet. For example, If you were to cut the pipe ID in half and double the pressure in that pipe, you'd have the same flow after deboosting but spend half the time waiting, waste half as much water and half the energy leaving residual hot water in your pipes. Increase the pressure and lower the diameter and the saving yields would be even better.

So without plumbing all new hot pipes to retrofit an older home, I thought about snaking the small diameter pipe through existing pipe. The hard part would be snaking the new water line. Would have to be done with a boroscope of some sort but what the hell would I do at a T fitting and what could possibly hold double or triple the water pressure?? Just a thought.