I worry that this presents the case for entrepreneurship as much stronger than it is[1]
The sample here is companies that went through Y-Combinator, which has a 2% acceptance rate[2]
As stated in the post, roughly all of the value comes from the top 8% of these companies
To take it one step further, 25% of the total valuation comes from the top 0.1%, i.e. the top 5 companies (incl. Stripe & Instacart)
So at best, if a founder is accepted into YC, and talented enough to have the same odds of success as a random prior YC founder, $4M/yr might be a reasonable estimate of the EV from that point. But I guess my model is more like Stripe and Instacart had great product market fit and talented founders, and this can make a marginal YC startup look much more valuable than it is.
Regarding the funding aspect:
As far as I can tell, Open Phil has always given the majority of their budget to non-longtermist focus areas.
This is also true of the EA portfolio more broadly.
GiveWell has made grants to less established orgs for several years, and that amount has increased dramatically of late.