Comment by UltraSane

The neat thing about science is that all the explanations have to fit together. The explanation for why the sun shines so bright for so long can't contradict the explanation for why birds can fly. When you reject an explanation as fundamental as evolution and the ages of the earth you really put yourself at a disadvantage in understanding many other things.

I actually had a young earth creationist say that the sun doesn't use fusion and thus its lifespan is more in line with the creationist worldview and I responded with neutrinos emitted from the fusion reactions in the sun.