But often it gets it right. It can be interesting and fun to watch the process of science changing its mind, and more so the earlier you can catch the process. I first ran into this with the great plate tectonics debate in geology; that had begun shortly before I was born, and really wasn't over for another 30 years or so, when plate tectonics became nearly universally accepted as the process that shapes the earth's surface.
I just read a piece of science news that strikes me as possibly, just possibly, the beginnings of another such change. Most likely it will turn out to be nothing - but there's a chance that it's the beginning of a big change in cosmology (and physics). I'm fascinated that the mathematics of the current theory of the universe's expansion is basically the same as the mathematics of the alternative explanation being put forth. There have been quite a few discoveries in science that started with just such an observation...
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