- #1
hideelo
- 91
- 15
I am reading gravitation and spacetime by Hans Ohanian and he is discussing the possibility of the constants, such as proton mass, fine structure constant, etc, actually changing over time. He makes the claim that since the universe is ~10^10 years old the expected change should be ~10^(-10)/year. I don't see why that should be the case. Can anyone justify it for me?