Idea to test time (Score 0)

Take a very accurate counter and insert it into a baby after birth. Wait 30 years and then take whatever day it is and subtract the DOB to get how old they are supposed to be. Then check the counter and compare the two times. Since the counter would always be relative with the person you would get a pretty accurate age. If the two values vary much then you can assume that all these years you have been driving like a bat out of hell really does make a difference!