Constants Not Constant?

grytpype writes: "According to this story, a team of astronomers have determined (based on their observations of distant quasars) that [certain physical constants] may have been different in the far past of the universe. The discovery (if validated) is said to be good news for string theorists."

Comments

Constants not constant

[Tattva]

More and more I think that theories in physics are nothing more than successive approximations and we'll never know the true nature of existence. With some of these theories it almost feels like someone is playing a trick on us and every time we see through it a new layer of tricks is added.