Justin Kaeser

@ZssBecker 10% per release compound quickly

Please re-read this before getting grumpy. I actively vibe/code apps to 5000+ customers at my SaaS companies (one at 40 millish ARR). I built and now maintain 3-4 apps/core parts of our business with it. I am a turbo claude code user. I'm not saying it's not useful. I saying that despite being incredibly useful, its also stupid as hell. Even with extreme gaurdrails/watching its a competent junior dev who does whatever it wants and you have to watch like a hawk. At somepoint making code fast is NOT an advantage and if your using claude/codex to push and review its own code...your actually an insane person. LLMs are amazing. The CEO's vibe zers are also drunk from the models telling them how smart they are 24/7. Anyone with even a hint of dev experience can crack open the code and see the endless tech debt piling up. It's no where near where it needs to be to do what people are claiming and each release is only like 10% better.

I vibe code every day. I have a team of 30+ engineers. We spend F tons of credits. And I will tell you this about AI from my experience. It’s being wildly over hyped. Everyone is drunk. Fucking drunk. All the CEOs and Gen Z’s saying coding is dead are idiots. IDIOTS.

@bswud but why would I ride a space-constrained car without a toilet or kitchen that still costs fuel (or electricity) and depreciates just to work, sleep or have beers, when I could just do all that at home? sure, people can have joyrides - as they do now

We need a tax on self-driving cars. Beneath eight states of the American Great Plains lies the Ogallala Aquifer, one of the largest bodies of groundwater on Earth. For centuries, extraction was constrained by the modest capacities of wind and hand power. At that rate, this 'fossil water' resource was effectively limitless. Farmers could draw as much as they wanted without ever running it down. worksinprogress.co/issue/escaping… But in 1949 Colorado Farmer Frank Zybach invented centre-pivot irrigation. Combined with electricity and the centrifugal pump, farmers could now draw thousands of gallons per well per minute, enough to irrigate 40 acres at a time. Since then, the aquifer has gone down 10%, losing a Lake Erie's worth of water. It is down 50% in the dry parts, where it recharges just 0.02 inches per year. Without intervention, modern pumps will bring about the total end of irrigated farming in the arid parts of the Great Plains in 20-30 years. This is what I call the Ogallala Trap. Technological change can create a new tragedy of the commons. The telegraph enabled the destruction of the passenger pigeon; sonar, radar, and diesel enabled the industrial trawling that devastated the North Sea cod in a decade; chlorofluorocarbons came close to destroying the ozone layer. Self-driving cars are about to do the same thing to roads. When you can sleep, work, or drink with friends in a moving vehicle, you will take many more journeys by car. Roads, which are free at the point of use almost everywhere, will grind to a halt. People who have to go to the office or the hospital will be stuck sharing the road with people having beers, working remotely, and taking naps. There is a fix, but it depends on acting now, before autonomous vehicles go mainstream. Voters balk at being charged more for something they already depend on. The tax needs to come in as soon as possible. Waymos are already in dozens of cities and do millions of journeys per month. We have very little time left. If we want to save our roads from omnigridlock, we must introduce road pricing for autonomous vehicles.

@Romy_Holland @maiab Our babies should hang out, ours could roll from 3 months age intentionally but almost never cares to do so (4 now). Clearly also a genius not to bother with rolling when he could be taste sampling everything he gets his hands on

@maiab yeah he’s not actually late on that one, he’s kinda just late considering everything else he’s up to. he’s kinda jacked and can lowkey sit but he doesn’t really roll, which is not the typical order of things.

i’m deadass convinced my baby is a genius. i’m aware that all parents believe this about their kids so i’m almost certainly wrong, but this knowledge cannot dissuade me of my belief.

@SamaHoole @grok check individual claims for accuracy pls

California's Central Valley produces 80% of the world's almonds. Each almond requires 3.2 gallons of actual irrigation water to grow. Not rainfall. Actual tap water pumped from aquifers. One gallon of almond milk requires 162 gallons of irrigation water. Compare that to dairy milk at 8 gallons of tap water per gallon, with the rest being rainfall that falls on pasture anyway. But here's where it gets properly grim. Almonds bloom for exactly three weeks in February. During those three weeks, California needs every pollinating bee in North America transported to the Central Valley or the crop fails entirely. Commercial beekeepers truck in 31 billion honeybees. That's two-thirds of America's entire managed bee population, all concentrated in one valley for three weeks. The bees are packed into trucks, driven across the country, dumped into almond groves drenched in pesticides, worked to exhaustion, then packed up and shipped to the next crop. The mortality rate is catastrophic. Beekeepers report losing 30 to 50% of their hives annually. That's billions of bees dead. Not from natural causes. From being used as disposable pollination machines for your almond milk. The pesticides don't help. Almond groves are sprayed with neonicotinoids which scramble bee navigation systems, fungicides which weaken their immune systems, and herbicides which eliminate the wildflowers they'd normally forage on between almond blooms. Meanwhile the aquifer depletion is permanent. The Central Valley has sunk 28 feet in some areas from groundwater extraction. That water took 10,000 years to accumulate. It's being drained in decades for almond milk. Your vegan latte killed more bees and used more water than a year's worth of dairy milk. But it's got "plant-based" on the label so you're definitely saving the planet.

@eshear There must be a meme about what you're doing on this thread

@ebenwert @RezabekA @sumodeananas Oooh! You did the meme!

Railless light rail is actually a great idea, the best part about light rail isn’t the rail but the form factor and right of way and stations.

@eshear @RezabekA @sumodeananas So light rail without fancy stations is no good?

“the best part about light rail isn’t the rail but the form factor and right of way and stations.”

@eshear @RezabekA @sumodeananas a sidewalk? some seats with a roof? (it's the same for buses and trams)

@ebenwert @RezabekA @sumodeananas Something is missing!

@RezabekA @eshear @sumodeananas I think he's referring to the low floor entry? But look!

@eshear @sumodeananas what is this supposed to mean?

@Romy_Holland Pregnant belly is firm, beer belly is squishy

it’s getting really hard to put on pants and shoes bc my belly is in the way when i raise my legs. i have never heard of this being a problem for men with big beer bellies and i don’t understand how this is possible.

💡 @jetbrains is back at Scala Days as a Gold sponsor! 🛠️ Visit their booth to try the latest IntelliJ Scala Plugin features, chat about AI in development, share your feedback, and grab some merch. scaladays.org/blog/jetbrains

here's the official announcement post! blog.jetbrains.com/idea/2025/07/b…

But the Big Things include support for Go and GoLand, and some settings that can improve indexing times by over 5x for large projects. And most importantly, it's now officially supported by us - that is JetBrains as The Bazel Plugin

After all this time! Our team officially is announcing the GA release of our new Bazel plugin for IntelliJ IDEA, GoLand and PyCharm. There is some neat new stuff since the 2025.1 release like a Bazel Query toolwindow and a lot of editor improvements for Bazel config files.

New video about Bazel! I'm trying to make a scary thing less scary and easily approachable with @intellijidea and our new Bazel plugin youtube.com/watch?v=JLvnnJ…

@VBragilevsky's bazed Bazel intro youtube.com/watch?v=JLvnnJ…

@jonathoda timely xkcd.com/3109/

I can’t take a shower because it is downloading a software update. What have we done?

@danielmitchell @amaldorai @mitchellh Sounds like something a Mitchell would say

@amaldorai @mitchellh agreed. mitchell is cool.

mom, how did we get so poor? > your dad put ‘request for quote’ instead of a ‘buy now’ button on his website

@flowersslop Number is a bit meaningless without knowing how much stock hasn't been sold

Yeah I would do exactly that. HYPOTHETICAL: If you truly believe AGI is close and money will soon be meaningless, isn’t it rational to cash out your stock now and enjoy what’s left of the old world, rather than risk holding assets that could become worthless or irrelevant?

Meet the #speakers of the #DevoxxPoland2025 🔥 ➡️ Anshika Koul ➡️ Bartosz Gałek ➡️ @ebenwert ➡️ @Nicooss54 See you in #Krakow! #DevoxxPL 🗓️ 11-13 June 2025 📍Krakow, Poland 🎟️ reg.devoxx.pl/?_gl=1*1gm5ue7…

@paulg Communication with humans requires a lot of work and person to get consistent results. Humans will figure out *something*, not always what you want or expect

It seems to me that AGI would mean the end of prompt engineering. Moderately intelligent humans can figure out what you want without elaborate prompts. So by definition so would AGI.