Serendipity

Merton & Barber on Serendipity

Happenstance covers much of the same territory:

...and there's even an AI product thus named, a social network search tool "Loved by 200,000+ users"

...Turn your network into your unfair advantage
Deep search across everyone you know.

...Join hundreds of thousands of professionals who use Happenstance to unlock the full potential of their network.