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hello today Im going to try to derive the Einstein field equations this will be a basic introduction it wont be rigorous it will cover the essence but it will still be quite complex if you want more detail then I refer you to Professor Leonard Susskind excellent lectures that he gave from October to December 2008 at Stanford Ive put a link to the YouTube version of these lectures in an annotation on this video I am going to follow his approach so that it will be familiar to you but I shall do it in a much more simplified version and lets always remember that it took Einstein ten years to develop these equations and he had access to many maths professors on the way as usual Im making the assumption that you understand calculus and basic geometry and that youve also seen or are aware of the information in my general relativity videos that are already up on YouTube and in particular that you are aware of two key points the first is what is called the principle of equivalence and wha
