2026 June – Jeff Duntemann's Contrapositive Diary

Southwest Airlines has just banned “human-like” or “animal-like” robots from its flights. Oh—and in checked baggage too. The concern is about biggish lithium-ion batteries, which does make sense. There’s also the issue of whether robots are considered passengers, checked baggage, or carry-on baggage that carries itself on.
Interesting long-form piece about archaic homo sapiens, a genetic group close enough to modern humans to share a species name, but different enough to trace their rise and fall and eventual extinction. Modern humans carry some juvenile traits into adulthood, like friendliness, playfulness, curiosity and flexibility, in a similar way that our modern dogs carry puppy traits like playfulness and cuddliness into adulthood. Dogs are lifelong wolf puppies, and we’re lifelong cave-kids.
Beef is not the big health risk that Certain Influencers have long been yelping about. Well, we’ve known that for a long time. Eggs are good for you too. As are protein and fat. The arguments will continue as arguments generally do.
Keeping lithium-ion batteries on charge even after they hit 100% shortens the life of the batteries. I knew this, and don’t keep my phone or tablets on charge after they hit 100%, which I check for from time to time.
Duke University scientists have created a 20-legged robot that merrily rolls along the Duke campus. Watch the videos; I’m a long-time robot fan and I think they’re cool.
And if creating 20-legged robots isn’t your thing, consider scientists at ETH Zurich who have created (theoretically) perfect randomness using two superconducting chips cooled almost to absolute zero and connected to each other by a 30-meter long tube similarly cooled. I don’t quite understand it either (how do you prove a number is perfectly random?) but I have a hunch you could sell perfect random numbers generated with such a device and make a good buck. We’ll see.
USB-C cables and ports can do a lot more than just charge your phone or tablet. Here are a few such things worth keeping in the back of your head.
Well, this certainly wasn’t on my bingo card: A humanoid robot fashion show, where the robots and their, um, fashion models wear the same clothes on the runway.
Here’s a map of America’s favorite house paint color—along with some discussion on when and why vivid colors fled from everyday American life. I remember when cars were all kinds of colors. The kitchen I grew up in was hot pink for a fair number of years—and then bright blue. Sure, all that was (many) years ago. Multiple colors increase costs for just about any product line. Shame, that—but a pretty solid explanation. (h/t to Rich Rostrom for the link.)

Amazon just messaged me that my latest Kindle title was now available. “Morning Man” is a 6,300-word short story with an interesting history. It’s about an AI DJ at a small farm-town AM radio station in Wisconsin. I wrote it in 1989. I never tried to sell it, but just threw it in a box full of old manuscripts, where it sat for the next 35 years or so.

Why didn’t I try to sell it? I couldn’t make the characters work. I’ve always been good with gadgets and world-building. Characters, well, I did my best, but the people in the story just didn’t sound especially real. Part of the problem may have been the fact that in 1989 we were preparing to launch PC Techniques and move to Arizona from Scotts Valley, California. My time and energy mostly went into that megaproject. By the time I retired in the teens and returned to fiction, I had mostly forgotten the story of Rusty the AI and his bewildered owner.

So I pulled it out, read it a few times, and rewrote it heavily. Now, having five novels and a couple of intense workshops behind me, I knew what I was doing. The characters now work. And you can have your own copy for 99c.

Well, AI DJs on broadcast radio are now real, and becoming common. Here’s one piece on the state of things as of 2025. Rolling Stone has another good piece on the topic, but it’s paywalled. My brief scan showed a few more, and if the topic interests you, you can probably find plenty.

I don’t expect the general public to believe that I predicted AI DJs in 1989. Nonetheless, I did. So take a look and see what you think. Reviews and ratings are always welcome; thanks in advance. And as I’ve said here more than once, I gotta go dig around in that box and see what else I wrote and then forgot about!