Mattias Hällström

[Mark Z. Jacobson @mzjacobson]

The experiment is over – we know what does and doesn’t work to address climate

If we look at what has been proposed to address global warming, air pollution, and energy security during the past 25 years, only one solution – electrification of all energy sectors and generation of the electricity with wind, solar, geothermal, and hydro sources -- has made an impact. This solution has reduced enough world emissions and technology costs for the @IPCC_CH, to eliminate its worst-case climate scenario. What are the proposed climate solutions that never worked? (1) Fossil gas replacing coal, (2) ethanol replacing gasoline, (3) carbon capture, (4) direct removal of CO2 from the air by equipment, (5) blue hydrogen, 6) nuclear, and (7) geoengineering. We knew these were poor solutions back in 2009, when they were first evaluated. But, it has taken 17 years to overcome lobbyists pushing these techs. On the other hand, electrification of world transport, buildings, and industry and using clean renewables to provide the electricity while growing energy efficiency, also proposed in 2009, has worked, as evidenced by the world growth in electric vehicles, heat pumps, electric furnaces, and clean, renewable electricity generators. All-of-the-above policies, or let’s try everything and hope something works policies, have failed. Given the short time we have, we should never see another IPCC scenario that includes biofuels, carbon capture, direct air capture, nuclear, geoengineering or their derivatives, blue hydrogen, electo-fuels, or sustainable aviation fuels. We know what works. Let's focus on that going forward.

References

Elimination of most extreme IPCC scenario
https://t.co/y2F2mAbCTU

Components of a WindWaterSolar system
https://t.co/viWz8mbv3v

2009 paper evaluating energy technologies
https://t.co/QzjG2d417e

2009 paper proposing to transition the world to 100% WWS
https://t.co/axJJKhHr5n

More details here: "Still No Miracles Needed"
https://t.co/K6Yd0rGJ9e

Video
https://t.co/2U4FMPUC6l

[Brivael Le Pogam @brivael]

Dans le manifeste "techno-optimiste" de Marc Andreessen, il y a une phrase qui m'a marqué :

"Our enemies are not bad people – but rather bad ideas."

Nos ennemis ne sont pas des mauvaises personnes. Ce sont des mauvaises idées.

Prenons Jancovici. L'homme est brillant, sincère, travailleur. Il ne se lève pas le matin en se disant qu'il va nuire à l'humanité. Mais l'idée qu'il porte la décroissance, le rationnement, la frugalité érigée en horizon civilisationnel est une idée profondément destructrice. Elle prend des esprits brillants et les transforme en commissaires politiques d'un futur appauvri.

Et le plus fascinant, c'est ce que cette idée fait aux gens qui l'adoptent.

Dans mon entourage, une grosse partie de mes amis est sur cette ligne décroissantiste, avec tout le package qui va avec. L'argent c'est mal mais ils en veulent. Il faut moins prendre l'avion mais ils rêvent de voyager partout. Il faut consommer moins mais ils ne renoncent à rien de ce qu'ils aiment vraiment.

Et tous ont un point commun : ils sont déprimés. L'un d'eux m'a même confié qu'il était sous antidépresseurs.

Ce n'est pas un hasard. C'est mécanique.

Quand tu crois que ton désir de vivre, de créer, de t'élever est moralement suspect tu te détruis de l'intérieur. Tu passes ta vie à t'excuser d'exister. Tu vis dans la dissonance permanente entre ce que ton corps veut (plus, mieux, plus loin) et ce que ton idéologie t'ordonne (moins, sobre, immobile).

D'où ma théorie :

Quand on pense quelque chose de fondamentalement faux décroissance, communisme, extrémisme religieux (de tout ordre) ce n'est qu'une question de temps avant que ça devienne vraiment destructeur.

D'abord pour soi. Puis pour les autres.

Les mauvaises idées tuent. Lentement chez ceux qui y croient, brutalement chez ceux qui les subissent.

C'est pour ça que la bataille des idées n'est pas un luxe d'intellectuel. C'est la bataille la plus importante de notre époque.

[Fredrik Hjelm 🇸🇪 @FredrikHjelm4]

To keep the Swedish model, we first need to be rich enough to afford it.

To be the richest country in the world, we need:

Clean abundant energy. SMRs as the spine, renewables for resilience

Datacenters and compute at European scale

AI in the public sector and across the real economy

Reindustrialization, including scaled manufacturing of multimodal drones

Real defense: Saab full-stack, space, cyber

A Swedish nuclear deterrent

Permitting reform so mines, reactors, factories and housing get built in years not decades

AP-fonderna redirected to back Swedish growth equity at scale

High-skill immigration as a competitive weapon. Fast, predictable, generous

A STEM education system that stops sliding on PISA

Gang violence crushed. No founder, family or engineer moves to a country that cannot keep order

Stockholm positioned as the European Singapore for capital, HQs and talent

Active EU regulatory shaping. Block AI Act overreach, drive the competitiveness agenda

Welfare needs wealth. Safety needs strength. The Swedish model needs both.​​​​​​​​​​​​​​​​

What am I missing?

[Mattias Hällström @mhallstrom]

@elonmusk Esrange in Sweden.

https://t.co/7LvfzUK35Z

[Cern Basher @CernBasher]

https://t.co/e12bIbHzmc

[Ebba Busch @BuschEbba]

@paulg — glad Stockholm passed the vibe check. 🇸🇪

Hope tonight is a success. Welcome to the capital of capital — Europe's #1 unicorn factory and the world's 2nd most innovative country.

Y Combinator is warming up the crowd tonight and I'm picking up where you leave off on Monday. Bring your pitch to TAK Stockholm — let's keep the momentum going. 🦄

May 4 | 17.30 | https://t.co/AVk4jkpyED
AW: TECHBROS AND TECHGIRLS

[Ebba Busch @BuschEbba]

AW: TECHBROS AND TECHGIRLS

Välkommen på AW med mig på TAK i Stockholm på måndag för att prata om hur Sverige kan bli mer techvänligt land.

Sverige är riktigt bra på mycket, men vi ska bli ännu starkare. Därför vill jag ha dina pitchar! Har du en one-pager, lovar jag att läsa den personligen. Skicka in den via länken eller ta med den på plats.

Vi hoppas samla några av landets mest intressanta entreprenörer. Väl mött! 🍻

📍 TAK Stockholm | 🗓️ Måndag 4 maj | 🕕 17.30
🔗 https://t.co/AVk4jkpyED

[Mattias Hällström @mhallstrom]

@CernBasher @Grok how much capacity has Tesla Cortex 2.0 achieved?

[Mattias Hällström @mhallstrom]

@elonmusk And some education in living a meaningful life.

[Mattias Hällström @mhallstrom]

@LinkN01 This can't be right? How disappointing.

[Mattias Hällström @mhallstrom]

@FredrikHjelm4 May I suggest SpaceX rockets with AI satellites from Esrange? (Not joking).

[Mattias Hällström @mhallstrom]

Heja Richard!

Du kommer helt klart att bidra i september.

Tips:
Vi behöver få in Tesla FSD & Robot-taxi i Sverige. Kanske nyckeln till att få SpaceX att investera i Esrange, vilket EU verkligen skulle behöva.
(Trots att Elon är kapitalist, anti-woke och negativ till både Islam och oreglerad invandring).

[Mattias Hällström @mhallstrom]

@truthandtesla @TeslaBoomerMama How much can you loose worst case?

[Mattias Hällström @mhallstrom]

@elonmusk https://t.co/DDffu4dzhM

[Mattias Hällström @mhallstrom]

https://t.co/DDffu4dzhM

[Mattias Hällström @mhallstrom]

@NiohBerg Suicidal Empathy

[Mattias Hällström @mhallstrom]

@rickygervais I will buy if you are on the label. Seriously!

[Mattias Hällström @mhallstrom]

@SecScottBessent @grok how will these sanctions affect Russian economy? Best case? Worst case?

[Mattias Hällström @mhallstrom]

@voximplant Are you planning to wrap some of Voximplant phone management functions in a MCP-server so that OpenAI Realtime prompt can forward calls, start multi-part calls et c?

[Adam Dorr @adam_dorr]

Launching October 13.

“One of the most important books I’ve read in a decade at least. It’s a very long time since I read a book in just one day. That’s how good it is.” -- @mark_lynas