Re. 2), I think the relevant figure will vary by activity. 30% is a not-super-well-considered figure chosen for 80k, and I think I was skewing conservative … really I’m something like “more than +20% per doubling, less than +100%”. Losing 90% of the impact would be more imaginable if we couldn’t just point outliery people to different intros, and would be a stretch even then.
Re. 2), I think the relevant figure will vary by activity. 30% is a not-super-well-considered figure chosen for 80k, and I think I was skewing conservative … really I’m something like “more than +20% per doubling, less than +100%”. Losing 90% of the impact would be more imaginable if we couldn’t just point outliery people to different intros, and would be a stretch even then.