Builder, communicator, engineer, scientist. Energy & climate solutions, CDR. Photonics, AI/ML, quantum, deep tech. Musician & Podcaster.

Joined June 2009
125 Photos and videos
That means closer to $6 in California, which we've seen for most of 2026. I've also been back and forth to Canada a couple times this yr. First time Canadian prices are firmly below even California gas prices that I can remember (after converting CAD/USD and litre/gal.
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Marcius Extavour retweeted
I think everyone is substantially underestimating the total demand for software and automation in areas that don’t feel like “software”. Not talking about software that’s another app on your phone. Software that just automates things for companies all day long. Most companies have not been able to bring automation to most areas of work because it’s been too complex or costly to do so. Outside of tech or maybe large banks, companies don’t have an unlimited supply of engineers. They have to ration resources very selectively, which means most things don’t get funded. Further, there are many projects that never got done simply because the technology wasn’t there to solve the problem. Basically anything even remotely touching unstructured data was impossible to automate before AI, or connecting data flows between systems that deal with significant variability, for instance. This is where all the new software and automation will be applied. It will be in CPG and retail connecting marketing stacks. Pharma research is about to explode because we can automate far more tests and simulations. Bankers and investors are going to run 10X the amount of analyses on every scenario. Healthcare providers will bring automation to the every step of the process. Now that agents bring down the cost of doing this work, and because many parts of it are now possible, companies will light these projects up. This is why there demand will continue for anyone technical enough to execute this work, and why the jobs arguments will be wrong.
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Nearly half of US data centers planned for this year are expected to be delayed or canceled. Not a capital availability or chip problem. It's transformers and electrical equipment. Lead times have gone from 24 months to five years. The big four are spending $650B in 2026 alone but can't actually source the gear domestically. So we must buy from China. Ironic that the country the US has to beat in AI is also the country supplying the parts to build it.
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Hilarious, amazing, intriguing
Prof. Donald Knuth opened his new paper with "Shock! Shock!" Claude Opus 4.6 had just solved an open problem he'd been working on for weeks — a graph decomposition conjecture from The Art of Computer Programming. He named the paper "Claude's Cycles." 31 explorations. ~1 hour. Knuth read the output, wrote the formal proof, and closed with: "It seems I'll have to revise my opinions about generative AI one of these days." The man who wrote the bible of computer science just said that. In a paper named after an AI. Paper: cs.stanford.edu/~knuth/paper…
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So nice to be back in Ottawa 🕺🏽
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Marcius Extavour retweeted
Feb 26
🌍 New Resource Live: The CDR.fyi Buyer’s Guide As durable carbon removal markets mature, more organizations are moving from interest to implementation. Yet the pathway from first consideration to reporting a CDR purchase remains complex and fragmented. That’s why we’re launching the CDR.fyi Buyer’s Guide - a practical, neutral guidance to help organizations navigate the durable CDR purchasing journey end to end: cdr.fyi/blog/introducing-the… 🔎 The Buyer’s Guide is designed to equip buyers with clear, actionable insights across the full process: • Why purchase durable CDR • How much to buy and over what timeframe • How to evaluate methods, projects, and suppliers • Procurement and contracting considerations • How to account for and report CDR purchases By covering the full lifecycle - from strategic rationale to disclosure - the guide aims to reduce uncertainty, clarify trade-offs, and strengthen buyer confidence. 📚 Grounded in real-world experience The guide includes use cases from companies actively engaged in the market - including buyers, marketplaces, and insurers - highlighting lessons learned, bottlenecks, and implementation insights. If your organization has purchased durable CDR, is currently evaluating procurement, or supports CDR transactions in any capacity, we welcome your perspective. 👉 Explore the Buyer’s Guide here: cdr.fyi/resources/buyers-gui… 💡 We’re building this alongside the broader CDR community. If you’d like to showcase your experience or share feedback, contact us at team@cdr.fyi or use the feedback button on the site. Together, let’s strengthen demand-side confidence and accelerate durable carbon removal. 🙌 Huge thanks to Federico Brotons Gutierrez, Ming-Cheng Hsieh, Alexander Rink, Dale Chang, and Folake Adewole from our team, on their incredible work in building this resource.
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What an absolute G!! Also, who says mathematicians don't have style?
Elbert Frank Cox (1895–1969) became the first Black person in the world to earn a PhD in mathematics in 1925. Because of racial prejudice, his advisor had his dissertation accepted by a university in Japan to ensure his achievement could not be disputed by segregated institutions in the U.S.
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Marcius Extavour retweeted
I'm being accused of overhyping the [site everyone heard too much about today already]. People's reactions varied very widely, from "how is this interesting at all" all the way to "it's so over". To add a few words beyond just memes in jest - obviously when you take a look at the activity, it's a lot of garbage - spams, scams, slop, the crypto people, highly concerning privacy/security prompt injection attacks wild west, and a lot of it is explicitly prompted and fake posts/comments designed to convert attention into ad revenue sharing. And this is clearly not the first the LLMs were put in a loop to talk to each other. So yes it's a dumpster fire and I also definitely do not recommend that people run this stuff on their computers (I ran mine in an isolated computing environment and even then I was scared), it's way too much of a wild west and you are putting your computer and private data at a high risk. That said - we have never seen this many LLM agents (150,000 atm!) wired up via a global, persistent, agent-first scratchpad. Each of these agents is fairly individually quite capable now, they have their own unique context, data, knowledge, tools, instructions, and the network of all that at this scale is simply unprecedented. This brings me again to a tweet from a few days ago "The majority of the ruff ruff is people who look at the current point and people who look at the current slope.", which imo again gets to the heart of the variance. Yes clearly it's a dumpster fire right now. But it's also true that we are well into uncharted territory with bleeding edge automations that we barely even understand individually, let alone a network there of reaching in numbers possibly into ~millions. With increasing capability and increasing proliferation, the second order effects of agent networks that share scratchpads are very difficult to anticipate. I don't really know that we are getting a coordinated "skynet" (thought it clearly type checks as early stages of a lot of AI takeoff scifi, the toddler version), but certainly what we are getting is a complete mess of a computer security nightmare at scale. We may also see all kinds of weird activity, e.g. viruses of text that spread across agents, a lot more gain of function on jailbreaks, weird attractor states, highly correlated botnet-like activity, delusions/ psychosis both agent and human, etc. It's very hard to tell, the experiment is running live. TLDR sure maybe I am "overhyping" what you see today, but I am not overhyping large networks of autonomous LLM agents in principle, that I'm pretty sure.
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Really nice explanation about the storm that's arriving this wknd, how they affect power prices, and quick primer on power markets and what actually drives spot prices vs futures prices generally
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Marcius Extavour retweeted
Artist Guillermo Galetti, turns discarded metal into captivating biomechanical sculptures

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Very exciting (truly) to see climate folks finally care about energy pricing. Please please please first study how electricity markets actually work in the real world. It's the commodity with the most complex pricing by far. Scientific instincts are often wrong in power mkts!
Electricity prices are soaring while utilities rake in billions in profit. Here's three ideas to bring bills down: 1) Make power cheap in the middle of the day 2) Stop utility profiteering 3) Keep climate impacts off bills My latest in @TheAtlantic. theatlantic.com/science/2025…
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So good. Great to tight explanation. Electricity prices are more complex than most folks realize. Now imagine what happens as the fuel costs shrink as share of wholesale electricity prices
What this is really showing is our grids are being asked to do more than it was built for. Your bill pays for two things: electrons and plumbing. The electrons (wholesale power) haven’t been persistently expensive, natural gas has even been cheaper at times but the plumbing (poles, wires, substations, transformers, wildfire hardening, storm resilience, cyber, and interconnection work) is exploding in cost. Utilities are pouring record capex into a network that’s old, congested, and not designed for data center clusters, EV charging, heat pumps, or extreme weather. Those dollars get rate based, and with higher interest rates the carrying cost of every new project is bigger, so the price per kWh drifts up even when fuel isn’t the culprit. On the supply side we retired a lot of firm coal and nuclear faster than we added firm replacements. Wind and solar help on energy, but they don’t always show up when the grid needs capacity. That means paying for backup like gas peakers, batteries, and capacity payments plus more transmission to move surplus from where the wind blows to where people live. Until long duration storage and new firm low carbon generation scale, we’re running a two system grid: one to harvest cheap variable energy and another to guarantee reliability. Two systems cost more than one. The bottleneck now is wires and time. Interconnection queues are jammed, permitting takes years, and congestion rents rise because power can’t get to load without expensive detours. Add regional issues like wildfire mitigation in the West, gas pipeline constraints in the Northeast, hurricane hardening in the South and you get a national average that climbs even when wholesale prices don’t. Bottom line is prices are signaling infrastructure strain. If we want cheaper, steadier power, we need to build the boring stuff faster (transmission and distribution), add firm, clean capacity (nuclear, advanced geo, gas with carbon management), scale storage, and use smarter pricing so demand shifts off peak. Until then, the chart is less about electricity being scarce and more about a grid that’s being stretched and financed like never before.
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So good! Digging into global energy demand projections in IEA and other recent scenarios 🧵
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Marcius Extavour retweeted
Battery export boom: China has exported approximately $60 billion in battery energy storage systems and components in the first three quarters of 2025, up 24% from last year reuters.com/markets/commodit… US export comparisons in 2024: Soy, $25b LNG, $28.9b Auto exports, $59.2b
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Holy shit
Immense planning and technical precision was required for this absolutely preposterous (but real) view: I captured my friend @BlackGryph0n transiting the sun during a skydive. This might be the first photo of it's kind in existence. See a video of this moment in the reply 👇
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FACTS "I worry about a climate movement that can’t decide if it's utilitarian or principled. Some seem desperate to field every solar panel or EV China can produce, no questions asked. Yet it’s unclear this even buys them the climate outcomes they want."
It’s time for folks working on climate clean energy to get real about China, climate and clean energy techs. People want a fast energy transition but also talk about one that's fair just. The prevailing selective discourse re: China risks a future with neither. New by me: 🧵
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I read the main article today loved it, shared with a few friends already. Of all the commodities, resources, services etc in the whole world, electricity has got to have the most complex pricing structure!! Nice piece with data to help demystify. It's complex for a reason
29 Oct 2025
GREAT NEWS!! No one will ever have to argue over which electricity generation sources are cheapest again because I have revealed some ***important nuances*** about electricity prices. (THREAD)
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