Incoming links: Dynamic duo
Some good mentions of their dynamic duo status at The Race for the Double Helix. Their chemistry and love are palpable during their joint interviews.
Very clearly, Francis is the charismatic one, and James is the nerd.
Cute dynamic duo: www.newyorker.com/magazine/2018/12/10/the-friendship-that-made-google-huge They were at Google in 2000 at least.