Coefficient Giving has $4B+ in grants behind it and says money is not the bottleneck for AI safety. Founders are. @BenGoldhaber explains: "I'll underscore that funding is not the bottleneck." "The best time to have launched this would have been a year ago. The second-best time is now." "Funding is not the bottleneck for a lot of these kinds of projects. Finding great founders and talent is." "Having individual program officers put their name, their byline by them, because they think that,…