https://rethinkpriorities.rethinkpriorities.org/ 2022-05-20 1.0 https://rethinkpriorities.rethinkpriorities.org/epoch 2022-12-10 0.5 https://careers.rethinkpriorities.org/postings/bc1c94f2-31d6-4e04-817c-ab1e7e6c26c9 2026-09-23 0.5