If Adam is right, and the only way to get great at research is long periods of time with lots of mentor feedback, then MATS should probably pivot away from the 2-6 month time-scales they've been operating at, and toward 2-6 year timescales for training up their mentees.
Seems dependent on how much economies of scale matter here. Given the main cost (other than paying people) is ops, and relationships (between MATS and the community, mentors, funders, and mentees), I think its pretty possible the efficient move is to have MATS get into this niche.
