Causal Tiling: Stop Paying for the Same Reasoning Twice
AI has a strange habit: it is expensive because it is forgetful.
We train giant models on staggering amounts of text, logs, time series, and behavioral traces. Then we ask them to solve the same classes of problems again and again: Why did demand move? What caused the outage? Which levers drive revenue? What happens if we change this constraint, this price, this power contract, this promotion?
The astonishing part is not that our models can answer these questions. The astonishing part is that they often answer them by recomputing similar reasoning from scratch every time.
That is wasteful. It is wasteful in tokens, wasteful in compute, and wasteful in latency. More importantly, it is wasteful in the deepest sense: we keep paying for intelligence as though intelligence has no memory.