WITI Team | April 18, 2026

The Saturday Selection, Vol. 101

Featuring Caveman Claude, Delta Force style, the Geese psyop, and more.

Every day, WITI’s group chats buzz with fresh links. As part of our Saturday send for paid readers, we round up 11 of the best.

It’s WITI, on the weekend.

Members of the Artemis II crew receive a lesson on lunar fundamentals in the Apollo Lunar Lab.

Why are these interesting?

Devs Are Making Claude Talk Like a Caveman to Cut Costs—And It Works (Decrypt)

A Reddit post claiming 75% output token savings sparked 400 comments and multiple GitHub repos dedicated to making AI grunt its way to efficiency.

Artemis Astronaut Describes Charring on Heat Shield during Crew’s Fiery Return to Earth (Reuters)

​Astronaut Glover on Thursday told reporters Orion’s onboard ​screens showed they reached speeds of 29,839 miles per hour. If you’re still as hooked by this story as I am, here’s a video of the launch as seen from a commercial airline in flight, and a New Yorker story about the time Neil Armstrong wanted to go to the zoo.

On Filing the Corners off my MacBooks (Kent Walters)

“It is uncomfortable on my wrists, and I believe strongly in customizing one’s tools, so I filed it off.”

The Road Signs that Teach Travellers about France (BBC)

For more than 50 years, France’s brown motorway signs have done far more than point the way: they’ve sold the country’s history, culture and identity in seconds.

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