A mass shooting in Louisville, Kentucky, reminds us of an unfortunate reality: They’re becoming routine. As we discussed in a recent deep dive, the AR-15, the most popular weapon in the consumer market, is often used in mass shootings and has fueled debates on what should be done. Then: Crypto mining presents a huge environmental problem, but there are alternatives. And: A unique solution to the Pythagorean theorem makes us smile.

Here’s everything we talked about today:

• “Gunman Kills 4 Co-workers at Louisville, Ky., Bank on Livestream, Police Say” from The New York Times
• “Gunman livestreamed mass shooting at Louisville bank that left 4 dead and 9 wounded, police say” from CNN
• “Pfizer, Biogen among hundreds of US drugmakers calling for abortion pill ruling reversal” from Reuters
• “Why the GOP isn’t celebrating this major antiabortion ruling” from The Washington Post
• “The Real-World Costs of the Digital Race for Bitcoin” from The New York Times
• “An environmentally friendly model for crypto mining shows promise” from “Marketplace Tech”
• “With ‘the merge,‘ ethereum tries to set a greener example for crypto” from “Marketplace”
• “New Orleans East teens make ‘impossible’ mathematical discovery unproven for 2,000 years” from WWL
• “2 High School Students Prove Pythagorean Theorem. Here’s What That Means” from Scientific American
• “Can ChatGPT Decipher Fedspeak?” from SSRN
• Have I Been Encoded?

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