How to Get to Orbit Cheaper than SpaceX's Starship Ian Brooke has developed a new kind of jet engine that can act as the first stage of a rocket. I get brunch with him every Sunday and have grilled him for hours on how it works. Adaptive Cycle Jet Engines, the primer 🧵

A key invention is the RC1, the machine that eats the machine. A giant rotating tunnel slow-cooks batteries at ~300C. It uses almost no energy—a self-perpetuating release from the cooked batteries. No oxygen, no fire, no waste. Gases are trapped & made into industrial products 5/

If you ever held any doubt that batteries could fundamentally shift the dynamics of the grid, set that aside -- we're going to need to rename the duck curve. Storage dispatched up to 7 GW in CAISO in 2023. Another mindblowing blog from Grid Status: blog.gridstatus.io/caiso-batterie…

5 minute clip explaining that energy does not flow through wires it flows around the wires through free space based on electric & magnetic fields How have I never known this??

can confirm Designer Fund is an exceptional VC partner. never been easier to create "software" - and yet many perils on journey to create an insanely great experience. Designer Fund's team puts in reps with you, and taps a staggering A-list of operators w/ cheat codes

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Often forgotten! We’ve added GWs of capacity to the existing nuclear fleet by never adding a single new plant. If you’re willing to make the investment, these assets can burn hotter or more efficiently and add significant capacity without ever building a new plant.

How Libra Was Killed. I never shared this publicly before, but since Marc Andreessen 🇺🇸 opened the floodgates on Joe Rogan’s pod, it feels appropriate to shed more light on this. As a reminder, Libra (then Diem) was an advanced, high-performance, payments-centric blockchain paired with a

this is a long read, but i had some time to think over dinner and wanted to share a few thoughts and provide a plan forward: 0. i’ve had a lot of very memorable days on the internet over the past 30 years, but this one tops them all. my wife yi and i are unbelievably grateful to

I know we aren’t supposed to interrupt the group chat discourse with woke nonsense like the habitability of our planet, but possibly the most intense heat wave on record is unfolding from Sub-Saharan Africa to East Asia and it’s getting zero attention.

FUSION☀️ overtakes FISSION☢️

If I may artistically retweet Thomas L. Friedman’s retweet of Noah Smith 🐇, and the geo-strategic blunder we can yet still fix: They “have decided to think of batteries as a culture-war issue instead of one of national security. and “They think they’re attacking hippie-dippy green

It's peak demand time right now in Texas. A thousand megawatts of gas & coal plants have gone offline TODAY, more than 10,000 total. Plenty of power bc solar is cranking out >23,000 megawatts ON PEAK. Your policy is one of energy subtraction that will hurt grid reliability and

The US is falling behind the curve on solar power – a key energy source of the 21st century. We are losing our edge to China on the technology that we originally invented. Now Senate republicans want to take out our solar industry at the knees in their "Big Beautiful Bill":

imagining winning a 2030s world war after deporting every h1b and refusing to use battery technology. not possible.

Jigar Shah Solar has material summer capacity value for systems with summer loss of load expectation, at least until a certain point of solar penetration. It also has synergistic capacity value w/ storage, as Arne Olson et al have repeatedly demonstrated. dms.psc.sc.gov/Attachments/Ma…

You basically standardize on a “home usb-c” that’s like a kilowatt @ 48VDC. Your panel is ~a USB hub. Electricians aren’t required as it’s like running Ethernet lines. Main question is HVAC / Hot water: you probably want a couple kilowatts, so just run multiple channels?

Absolutely insane statistic: China is building 3/4 of all solar and wind globally: 510/689GW under construction on.ft.com/4lr7QjW via Financial Times

Solo founders are underestimated. We’re changing that. In May we launched the Solo Founders Program (<1% acceptance rate) for six founders to build together in SF. 60 days in: millions raised, 35k GitHub stars, rapid growth. Join us: Fall 2025 applications close soon.

As always, Michael Liebreich - @MLiebreich.bsky.social on the money in his latest. "Yergin and co. play several other games. They promote the so-called primary energy fallacy, by which the world’s apparent dependence on fossil fuels is inflated. The real figure is not 80% but 68%, because of the differential