A startup just raised 475 million dollars at a 4.5 billion valuation to build AI chips that run on physics instead of simulating it—targeting 1000x better energy efficiency than current systems. Your brain runs on 20 watts while the latest NVIDIA GPUs burn through a kilowatt, and we're about to hit a wall where AI demand outpaces global energy supply in 3-4 years. Unconventional AI is basically trying to make chips that work like actual neurons instead of pretending to be them through layers of code, backed by Bezos and the founder who already sold two AI companies for over a billion dollars combined.