https://web.archive.org/web/20210806101020/https://spectrum.ieee.org/ethereum-plans-to-cut-its-absurd-energy-consumption-by-99-percent#toggle-gdpr https://web.a

https://web.archive.org/web/20210806101020/https://spectrum.ieee.org/ethereum-plans-to-cut-its-absurd-energy-consumption-by-99-percent#toggle-gdpr https://web.archive.org/web/20210806101020/https://spectrum.... According to this, the PoS schedule first slipped in 2017. (search for "snooze button")