ChatGPT-4o is your kid's new math tutor

Boy do I wish this existed when Ian was in school! The founder of Khan Academy and his son test out OpenAI’s new tutoring tool. Pretty amazing stuff.

Guy brings AI avatar to court — April 12th, Hour 3

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He didn’t hire a lawyer. He generated one with AI. Spoiler: It didn’t go over well. Plus, Sabrina Carpenter lands a gig inside Fortnite, and a new hiring buzzword to know. Looking for a side gig? You can get paid to test websites before they go live.

🤖 AI just passed the Turing test: Yep, the one where a human has to guess if they’re talking to a machine or a real person. In a study, people chatted for five minutes with both a human and a chatbot without knowing which was which. Their job? Pick the human. GPT-4.5 fooled them 73% of the time, and LLaMA 3.1 got 56%. Yikes.

23 seconds

Tests that predict your fall risk. Test 1: Stand heel-to-toe with one foot touching the front of the other. Test 2: Balance on one leg. Brazilian researchers say 10 seconds (the old baseline) isn’t enough. Aim for 23 seconds. Every extra second lowers your risk of a fall in the next six months by 5%.

🚗 Fastest car under $1 million: I’m a car gal, so I love this story. The Chevrolet Corvette ZR1 hit a top speed of 233 mph on a 7.6-mile test track in Germany. You may know it’s one of the heaviest sports cars, starting at $174,995. To punch above its weight, GM engineers simulated it to prep for the test. The computer was only off by 1.09 mph. How cool. I tried a computer sim once, but I was only spinning my wheels.

Why yesterday's emergency wireless test proved nothing

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Did you get the alert yesterday? Here’s my take, in one minute.