The interface shapes what you can think

Put the same model behind three interfaces and you get three different minds. In a chat box, you think in turns: ask, read, ask again, and the work scrolls away above you. On a canvas, you think in space: lay options side by side, drag them around, compare at a glance. In a direct-manipulation tool, you think by doing: grab the thing and change it, and the result answers back. Same engine underneath; the moves you can make are not the same.

The interface decides which moves are easy and which are effectively unthinkable. Chat makes "ask one more question" easy and "compare six drafts at once" almost impossible. That is why defaulting to chat is a real choice, not a neutral one — it quietly forecloses whole ways of working. Douglas Engelbart designed his systems to augment human intellect rather than just answer queries, and Bret Victor argues the medium itself sets the ceiling on understanding.

This is the same lesson as Tools for thought change what you can think: the representation is not a wrapper around the idea, it is part of the idea. And it is why Show the data; don't just assert it matters — an interface that exposes the real thing lets you think with it, not just about it.

See the interfaces guide.

Next: ask what your current AI interface makes hard to even attempt.