Lesson 5 — The Four Lines of Evidence
The Big Bang
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Learning Material
6 pagesLesson 5 — The Four Lines of Evidence
Understanding the Complex: The Big Bang — What Really Happened at the Beginning
Scientific theories aren't accepted because of a single experiment. They're accepted when multiple independent lines of evidence all point in the same direction — when it becomes harder to explain the convergence than to accept the theory. The Big Bang has four such lines of evidence.