One superpower I wish I had is the incredible summarizing into single sentences that you can see in the LLM web UIs when they automatically make a title for a discussion.

I wonder if there’s a way to train that ability.

If by "train" you mean "learn", it occurs to me you could try applying the "CAR story" interview technique of relating a story in 3 sentence (one each for the Challenge, Action and Result). Once you have it down to 3 sentences, distilling it into one, or producing a title, should become doable. HTH

> I wonder if there’s a way to train that ability.

I have to imagine it comes down to study and practice, just like everything else.