When I run, I collect all my training data in Strava. When I actually want to understand that data, or get some coaching out of it, I don't open Strava. I bring the data to Claude instead.
That's a small, personal habit, but it points to a bigger question every product team is now facing: where should intelligence live? Inside your product, where you build and control the whole experience? Or outside it, in the assistant your customer already has open - Gemini, Siri, Claude?
That's not just a fitness question. Products no longer compete only with others in their category. They compete with whatever AI system a user decides to try the same task in instead.