Personal opinion does have a bearing on any conclusion drawn. However, with a textbook, or an encyclopedia, the data that these conclusions are drawn from is sourced, and can be assesed. Do you think that wild and fanciful opinions unsubstantiated by fact make up the bulk of our textbooks and reference libraries? I think Encyclopaedia Britannica would disagree quite strongly, don't you?


These are opinons, if you want to call them that, that are of substance, based on fact, not mere whimsy defined by how you think the universe should be, or how a fairytale in a book says it should be.
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -
Albert Einstein