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date: 28 November 2021

p. 273. First principleslocked

p. 273. First principleslocked

  • Peter Coles


The general theory of relativity came out in 1915 and, almost immediately Einstein sought to explain the large-scale behaviour of the entire cosmos. ‘First principles’ discusses the role Einstein's theory has played in understanding the behaviour of the Universe as a whole. Einstein was hampered in his attempts by the lack of information. What was the Universe really like? He wasn't an astronomer. He used observations and guesswork. Why can't Einstein's equations explain the early Universe? The Big Bang theory is incomplete. The problem of not knowing about the initial conditions of the Universe is the reason why cosmologists still cannot answer some of the basic questions, such as when will the Universe end?

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