[RightWhale]

They say that anything that solves the equations must be valid, but Einstein apparently did not believe that. He rejected some solutions out of hand because they did not appear to describe the world even if mathematically they were perfectly good solutions.

[elmer fudd]

They say that anything that solves the equations must be valid, but Einstein apparently did not believe that. He rejected some solutions out of hand because they did not appear to describe the world even if mathematically they were perfectly good solutions.

If it solves the equations it means the formula is correct, but it doesn't mean that the theory behind it is too. The equation e=mc^2 was around years before Einstein came up with relativity. The guy who came up with it though didn't understand why it worked and Einstein did.

It's really not too surprising that someone came up with e=mc^2, since the standard formula for energy is e=mv^2.

[jdsteel]

They say that anything that solves the equations must be valid, but Einstein apparently did not believe that. He rejected some solutions out of hand because they did not appear to describe the world even if mathematically they were perfectly good solutions.

but didn't he also reject his own theories that would have required the "dark matter" that we now accept to be the most plausable scenario?