David Friedberg says Google's AI stars are walking out because the company is funding data centers, not their models. "So now if you're one of the great computer scientists, you're Demis, you're Jeff Dean, you're this whole crew, and you're inside at Google and they're allocating capital not to your models, not to the things that you're most interested in." "But they're allocating capital to infrastructure and data centers and supporting the broad ecosystem of models." "You start to say, well, given the fact that I can go down the road and visit Brad Gerstner and a couple other people and raise a couple billion dollars at a multi-billion dollar pre-money with a PowerPoint deck because I'm the greatest in the world at doing this, that might be a better path for me." "And I think that that's the moment. So the way I would frame it is capex is high alpha, low beta in data center infrastructure. That capital and model development theoretically could be high alpha, but it's very high beta. It's a very risky way to deploy capital."