The bubble already popped. What’s left is stubbornly practical:
Open weights that move faster than marketing.
RTX‑class hardware people can actually buy.
Video models that must respect invariants.
A generation that builds workflows, not press releases.
s4 is for this phase: fewer launches, fewer copies, fewer illusions. The symmetries are simple. The engineering is not.
—
Weyl AI Labs “The inhuman quality of starlight, brilliant and sharp.”
S₄ note: it’s an analogy and a discipline. We enumerate 4D permutations, benchmark on your hardware, and lock one. No abstract‑algebra cosplay in the hot path—just fewer mistakes.