. . . 1 - Quantum mechanics + Quantum gravity = Problem
2 - Extra dimensions = Supersymmetries = Problem
'' So far, no experiment has been able to observe such extra dimensions.''
3 - The candidates for Dark matter = Problem
4 - Graviton = Problem
5 - ''we cannot find a way around infinities.'' = Problem
6 - String theories + superstring theories + M-theory = Problem
7 - The Standard Model of particle physics = Problem
8 - The hierarchy puzzles = Problem
9 - The black holes + black hole entropy / information = Problem
10 - Expanding Universe Unexplained /Dark energy = Problem
11 - Cosmological Singularities = Problem
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After manipulating with different formulas and extra models physicists get modern view of our universe.
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https://acircleisround.com/2020/05/30/in-theory-can-we-string-the-universe-together/?fbclid=IwAR1jvFtC-mvw-JvmuVhrteWpxNMtddOolOA3wDcCp2-utdacdKY0ZJgxEKw
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