Thank you, both! This conversation sharpens how I think about coordination costs in tech. Two questions:

Once hyperscalers fund TSMC alternatives, who pays the ongoing cost of keeping those fabs competitive during peacetime? (Memory markets solve this automatically because three competitors force each other to maintain parity or lose share?)

And when ChatGPT ties ads to conversation context rather than user profiles, is the real problem that users bear the adjustment cost instead of the platform?

The intuition here is that when Meta builds a profile from behavioral data across its platform, Meta bears the cost of modeling the user. The Meta platform adjusts its description to match the user's revealed preferences. When ChatGPT ties ads to conversation context, the burden reverses: the user must now adjust their reading of every response, separating answer from advertisement, recalibrating trust in each output. The cognitive load of that adjustment falls entirely on the user.

I believe Ben is right that decoupling ads from answers is better design; the deeper reason is that it shifts the synchronization burden onto the party better equipped to bear it.

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