Here's the Tweet by the author of the newsletter that kicked off the Twitter thread where this newsletter issue was shared:

Less than 500 days until next halving. I looked into the effects of the previous halving on various #Bitcoin mining indicators 🧵👇

https://twitter.com/btc_halving/status/1604744624345604099

https://twitter.com/Smidnico/status/1605236513725349890 [Nitter]