Have you ever read the unclassified annual threat assessment? There is an official report the intelligence comminity puts out every year detailing what other nations are doing around the world. And that's just what theyre allowed to tell us.
Ive read it, and if you look at what they detail out for chinas militarzation moderniation plans, theres not many reasons theyre doing what theyre doing unless to compete with the USA. Not to mention, chinas going faster than what originally was thought, and theyre becoming less reliant on other nations to do it. Thats just 1 nation. The usa has stuck its nose in too many peoples business that if they stop the arms race, there could be a lot of nations coming knocking. Weve painted ourselves into a corner (or at least have the perception of it).
Edit: all that said, theres definitely ways to be more fiscally responsible with our military spending... just look at the f35 or the sentinel program
I loved my 1900 house. When we moved in, our insurance company said they wouldnt insure us if the knob and tube running in the attic was active. Our inspector wrote up the report saying it was dead wire, just didnt take it out when they ran romex... fast forward to us selling the house. New inspector tells us that knob and tube IS active and we have to replace it to sell the house. Sigh.
Another fun was trying to fix a door that didnt close right. Naturally i assumed the frame settled and wasnt square. Eventually started to get to work when i realized the frame WAS square, just about the only square joint in the house. But it mustve no been because the door was planed at an angle lol. That solid wood door replacement was hundreds of dollars, so it didn't get replaced