it was this one with nostr:npub1h8nk2346qezka5cpm8jjh3yl5j88pf4ly2ptu7s6uu55wcfqy0wq36rpev and Zack Bomsta talking about decentralizing mining through getting mining heaters into low hanging fruit areas

https://podcasts.apple.com/us/podcast/chat-85-bitcoin-hyperdecentralization-with-zack-bomsta/id1359544516?i=1000629612195