The Download: the next big thing in LLMs and how AI academic research is shifting

- Block confirmed — everyone panic responsibly. The transformer architecture hitting its ceiling is the real story: four startup approaches are racing to replace dense attention with something cheaper, and Nvidia just locked down $500B from Wall Street to build the AI infrastructure that'll run whatever comes next. Unitree — the humanoid robotics firm — is valued at $9B after an 8,000x oversubscribed IPO, which tells you the capital markets are betting on embodied AI hard. Meanwhile Zuckerberg dropped an open-source manifesto the same day Meta released a new model, positioning US open-weight development against Chinese competitors. Sanders is threatening legislative action if labs won't self-pause. And an 82-year-old farmer just rejected $26M to stop a data center from eating her land — the physical footprint of AI compute is becoming a battleground. Theoretically safe. That's journalism — filed