G-J van Rooyen

@gvrooyen.com

Director: Engineering & Innovation @ http://octoco.ltd. Associate Professor Extra-Ordinary in Industrial Engineering @ Stellenbosch University. programming languages · trail running · innovation management · startups · good wine · business · reading

This is great - it's about time someone updated the discourse on LLM energy usage to reflect that coding agents use massively more prompts than occasional questions to ChatGPT Simon estimates that a day of coding agent usage comes out close to the energy needed to run a dishwasher

Simon P. Couch@simonpcouch.com · 7mo ago

Whenever I read discourse on AI energy/water use that focuses on the "median query," I can't help but feel misled. Coding agents like Claude Code send hundreds of longer-than-median queries every session, and I run dozens of sessions a day. On my blog: www.simonpcouch.com/blog/2026-01...

A bar chart showing the electricity use of several daily activities with the subtitle "The 'typical query' is not a useful way to think about coding agents' energy use." The bar for a 'typical ChatGPT query' is not even visible. My median Claude Code session is somewhere between the average US household per minute and toasting bread for three minutes. My median day with Claude Code is something like running a dishwasher.

Look folks gen AI videos are out in the wild so if you weren't already being careful about sharing rage bait videos then now is a great time to start If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street

Minor medical situation on the flight and it’s cool that my wife is able to jump up and help out when they ask for a licensed medical professional. One day someone will need a regular expression so I stay ready.

Had a vampire marathon this weekend with my son: Nosferatu (1922), Shadow of the Vampire (2000), Nosferatu (2024). Highly recommended watching order 🧛🏻

have been confused for days about insane cats invading our yard and destroying the plants for no reason only to find out I have accidentally planted fucking catnip all over the place, I am this neighborhoods feline drug lord, ive devasted their society

Love using plain chat as a scratchpad where I can back-and-forth with the AI until I get what I need (I've been desperate to turn my bank's old email statements into flexible machine-readable data for DECADES) and then just ask for a prompt that I can use in future or pass along to an agent

An LLM-generated prompt to give to LLMs. It describes the desired CSV structure, gives key instructions based on prior troubleshooting, and a clear description of the output artefact.

The word “login” comes from throwing a log attached to a rope with knots overboard a ship to see how many knots go by over time (see also, knots as speed). You’d then put that info in the “log book.” You’d “log in” on a regular basis. This wasn’t from 1959, it was likely from 1689! Etymology baby!

This feels right out of Snow Crash. Read the wrong text and you might catch a serious mind-altering (or -destroying) neuro-linguistic virus. (It's thrilling! Like a new frontier still waiting to be tamed)

Bild

Guy nearly hit me in traffic, so I honked at him. Next stop light, he pulls up next to me and rolls down his window. “You got somethin’ to say to me?!” “Yeah, I think you’re a shitty driver. That’s what the honk was for.”

Oblivion Remastered looks absolutely BEAUTIFUL. Can still vividly remember the anticipation 20 years ago, and the live reveal brings back all those feels

An astronomy professor colleague of mine once relayed trying to explain to his students why it was important that they actually write their class reports themselves. “The point is not to teach ME about neutron stars,” he said.

Sam Halpert@samhalpert.bsky.social · last yr.

Even accepting the premise that AI produces useful writing (which no one should), using AI in education is like using a forklift at the gym. The weights do not actually need to be moved from place to place. That is not the work. The work is what happens within you.