I have to agree. However you characterize Grab, it seems he's gone there precisely because it isn't doing something unique; but because it's in an big, exciting

I have to agree. However you characterize Grab, it seems he's gone there precisely because it isn't doing something unique; but because it's in an big, exciting and rather equal contest. Which is fine, but doesn't fit logically with the long reason for leaving Google. For all we know Grab is a well-funded me-too company. Maybe the real key is adrenaline, not benefits to society. He finds genuine, unique innovation exciting, but he also finds head-on fights exciting - either way he gets his adrenaline, his work seems to matter to somebody and the work can't be "mailed in." Google's "fault" is that it's been allowed to leverage a monopoly (patent, originally) and extend it in ways that used to be illegal, for decades, and now they have a rather massive series of moats. It's never really in emergency mode.