[treetalker]

You've pinpointed the connection that people fail to make when they seek legal advice (or even information) from LLMs.

[JCharante]

what prevents the input from being keystrokes and screen recordings of thousands of lawyers solving cases?

[treetalker]

This makes the same error, or a related one. That input is not the lawyer's internal expert process, only the intermediate or (near-) final outcome of it.