You have to start somewhere.
If no new wars isnt good enough or a better economy or less inflation, maybe freeing Ross, pardoning most of the J6’ers; and leaning towards bitcoin is a bit better than say open borders, 87,000 more IRS agents, and crushing freedom of speech.
Ultrasonic sensors can be used to measure distance, but if you assume the speed of sound is constant like I did you’ll be sorely mistaken.
The actual speed of sound depends on both temperature and humidity so you have to compensate for both or your measurements will be inaccurate.
https://www.engineeringtoolbox.com/amp/air-speed-sound-d_603.html
Warren Buffett has said:
"I could end the U.S. deficit in five minutes. You just pass a law that says that any time there’s a deficit of more than three percent of GDP, all sitting members of Congress are ineligible for re-election."