Surgical Robotics AI

“NVIDIA recently announced a suite of physical AI tools designed to let developers train surgical and service robots inside virtual hospital environments before they ever touch a patient. The centerpiece is a developer blueprint called Rheo which generates physically accurate simulations of hospital settings — modeling medical device interactions, human movements and logistics — so that robotic systems can be safely developed and tested in digital twins.” More »

Last October I had a robotic colectomy during which my surgeon used the Da Vinci Robotic Surgical System. No AI was involved but using AI tools to train surgical robots sounds like a good idea.

How good are these AI tools? A prototype (GR00T-H) has demonstrated the ability to execute a complete, end-to-end suture in the SutureBot benchmark, highlighting robust long-horizon dexterity.

Audio conversations with Claude

My most interesting conversations with Claude tend to be long. Certainly longer than most people would ever read. I’ve been saving the “keepers” as PDFs and archiving them here.  I’ve long thought these “chats” might make good audio conversations. Still long but something that could be listened to while commuting. I assume people are already doing this. In the ever-more-frantic feature race, I keep thinking some frontier lab will add this as a feature. I ran the idea by Claude (my comments in bold): Continue reading →

Women who regret being mothers

Is “motherhood regret” the last great taboo? Every couple of years I come across an article about the phenomenon. From the BBC:

A 2023 study conducted in Poland estimated 5–14% of parents regret their decision to have children and would opt to be childfree if they had their time again.

Parents may not speak openly about regret, but they are finding community online. The Facebook group I Regret Having Children, which has 96,000 members. 

I guess you could say l’ve been collecting(?) these stories: Nikol Lohr on pregnancy; “He’d never wanted kids”; I Don’t Want Kids. While I’m more interested in the personal aspect of this trend, the global implications are… ominous? From Perplexity:

Global fertility has fallen from about 5 children per woman in the 1960s to roughly 2.2 today, and it is projected to drop to around replacement level (2.1) by mid‑century and below thereafter. This means population growth is slowing sharply, and the world is expected to peak at about 10.3 billion people in the mid‑2080s before starting a gradual decline.

Most countries in Europe, North America, East Asia, and parts of Latin America already have fertility well below replacement, with some (like South Korea, Italy, Spain, and China) near or below 1.2 children per woman. As their populations age and, in some cases, begin to shrink, they face pressure on pension systems, health care, and economic growth, and are debating pro‑natalist policies versus adapting to long‑term demographic contraction. Meanwhile, Africa still has higher fertility but is also on a downward trajectory, so the global long‑run trend is toward older, slower‑growing or even declining populations.

Bring A Trailer

Mr. Wolf will be using the Bring A Trailer website to find a new home for the Land Rover. Scheduled to leave Jefferson City on March 18. Mr. Wolf will then do his magic and list the truck along with lots of photos, videos (see comment below) and information that will get the best price possible. I’ll wager nobody does this better than Mr. Wolf. By way of example, this Rally-Style, 390 FE-Powered 1949 Lincoln 9EL Club Coupe 5-Speed. I first saw this car while visiting Mr. Wolf in 2018. Continue reading →