Death
According to the internet, I will live to be somewhere between 89 and 102 years old, and should fasten my seatbelt more often and eat fewer chips. This is bollocks.
My age at death will have nothing to do with the physical or moral fortitude I display during life. I could die tomorrow. It would be rotten luck, but that is all it would be.
NB: I am not planning to die tomorrow.