Elon Musk retweeted
Why Starship
The point of Starship is not that it is the biggest rocket.
It is that mass to orbit stops being a one-way ticket.
@elonmusk
“It's the first rocket design that is capable of full and rapid reusability.”
Translation: every other orbital rocket is still a disposable truck. Starship is built so the truck comes home and goes again. Refill is the next chapter. Reuse is the breakthrough.
1. Falcon Heavy: ~64 t to LEO (expendable)
2. Starship V3: >100 t to LEO reusable (SpaceX’s stated target)
3. You cannot make enough rockets unless you can refly them
4. Flight 13: Ship came home intact after entry
You cannot become multiplanetary on expendable trucks.
181
425
2,675
614,994
Elon Musk retweeted
Stack for x10 world GPD.
And btw should we separate space GDP from world GDP?
91
204
1,700
501,414
Keeping up with the Kardashevs
Elon Musk reveals why, measured against the sun's energy, human civilization barely registers as existing at all:
"Right now we're very low on the Kardashev one scale. If you say what proportion of our planet's power are we harnessing, it's a very, very tiny number. And we're harnessing almost nothing of our star's power. The sun is truly an immense thing. It's difficult with words to characterize just how immense the sun is"
"The sun is about 99.86% of all mass in the solar system. Most of the remaining 0.14% is Jupiter. The entire mass of Earth is in the tiny miscellaneous category. Earth is a tiny dust mote compared to the sun"
"We currently use much less than a trillionth of the power output of the sun, and a trillion is a million times a million. So basically we're practically nowhere on the Kardashev two scale. On the Kardashev scale, we're still non-existent. We're not registering"
2,146
3,561
28,484
7,883,624
Grok @Bot buys a Tesla!
Grok Bot can literally buy things for you on the internet now.
Here’s a wild example: @Baconbrix asked Grok Bot to buy him a Tesla, and it actually placed the order for a Model Y.
Grok Bot is getting insanely powerful. 🚀
1,124
1,412
8,443
4,490,708
Elon Musk retweeted
I made a video about what happens when you execute `c = a @ b` in PyTorch, from the code to silicon.
Hopefully it will help you appreciate that simple line of code more.
Made by Grok @bot. Enjoy!
It's beneficial for a software engineer to learn chip design so they understand how numerics flow through circuitry each cycle.
78
169
1,351
777,882
Elon Musk retweeted
This is the way.
The Left will attack people for thinking like this because it would mean putting an end to their racist Affirmative Action and DEI programs.
172
394
3,534
740,277
Starship is designed to completely change the economics of space
It is unlike anything humanity has ever built before
The amount of engineering SpaceX has packed into this machine is insane... constantly pushing closer to the limits of what physics allows
Everything around Starship is built for insane scale: payload, reusability, launch cadence, propellant, orbital infrastructure, the Moon, and Mars
Anything humanity wants to build at serious scale in space eventually comes back to one machine that makes it possible: Starship
This is the kind of scale humanity used to only imagine
Everything changes when you realize Starship is no longer just a “rocket”
It starts to look like a transportation system built for an entire civilization
156
424
2,412
451,609
Falcon Heavy is vertical at pad 39A in Florida ahead of Sunday’s launch of @NASA’s Nancy Grace Roman Space Telescope, designed to study dark energy, exoplanets, and astrophysics → spacex.com/launches/roman
402
1,738
11,187
1,207,642
Consensus estimate is that ~15GW of AI compute produced in 2027 cannot be turned on in 2027.
This is harder than just finding power, as you also need to build out all the transformers, wiring, liquid-cooling, (massive) chillers & complex networking. grok.com/share/bGVnYWN5_4f06…
2,046
2,650
19,623
6,835,381
Wow
Met a German founder this week and asked him if all the stories one reads about the challenges of startups in Germany are exaggerated. "No, they're understated." Proceeded to describe spending a full day having a 90-page investment contract read to him (mandatory under German law; § 13 BeurkG) by a notary that then charged €30,000. That was for his first company. His second company, needless to say, was not incorporated in Germany.
1,078
2,034
19,540
8,514,782
SpaceX and Tesla are each building 100GW/year of solar production capacity as fast as possible, but natural gas will still be needed to supplement and bootstrap solar for several years.
The limiting factor for nat gas turbine production is casting the blades & vanes. By doing in-house casting at SpaceX, we can accelerate nat gas turbines coming online by up to 18 months, which is a profound game-changer.
866
1,821
21,652
3,282,729
Elon Musk retweeted
Grok Bot has overtaken OpenClaw in Google Trends search interest. 🔥
237
317
2,808
521,244
Elon Musk retweeted
Here's a better comparison of @Tesla's new Robotaxi service area in Dallas. It's actually 158% larger than the old service area (in orange). New service area is about 80 square miles (vs 31 before).
All Tesla robotaxi rides in Dallas are unsupervised.
Tesla has just increased the size of its Robotaxi service area in Dallas, Texas for the first time since the service originally launched in April.
The new service area is roughly 50% larger than the old one, and includes more of the downtown Dallas city area and west of the city.
226
525
5,341
849,729
Yes
Matching the payload capacity of ONE Starship V3 flight would take 200+ Falcon 1 launches
That’s hundreds of rockets, hundreds of separate launches and an enormous amount of time just to move what one Starship is designed to carry
Orbital AI at serious scale needs a vehicle like Starship
And SpaceX now has exactly that
Starship V3 is designed to carry 100+ tons to orbit per flight with full reusability
That means:
• Huge batches of compute satellites launched at once
• Massive power and networking hardware deployed in a single mission
• Starlink connectivity + laser links for moving massive amounts of high-bandwidth data across the orbital network and back to Earth
• Rapid reuse for continuous scaling
• Direct access to enormous amounts of solar energy in orbit
• Orbital infrastructure expanding launch after launch
This is where Starship changes everything
Orbital AI stops being limited by how little mass we can get to space and starts becoming infrastructure humanity can build at enormous scale
And it’s happening much sooner than most people realize
973
1,685
9,861
4,525,322
Elon Musk retweeted
When I try and explain that tokens inferenced increased 25-fold in a year and are multiplying exponentially, cascading through the economy, and are likely to push real GDP growth per year toward double digit territory, many clients and companies simply do not comprehend.
415
761
7,868
1,230,185
While West Germany had VW, Mercedes, BMW, Porsche and Audi
East Germany failed to “guarantee” a car for every citizen, but it succeeded in (1) proving central planners can’t innovate and (2) replicating the breadline model to everything they touch.
Because steel was never available for private citizens, the “Trabant” automobile was made out of Duroplast pressed over cotton waste and scrap.
>same timeless design for 30 years
>super innovative 23-horsepower two-stroke engine
>no oil pump so people had to mix oil into the tank by hand at every fill up because labor itself is a worthy end
And people still had to wait 10-13 years on a waitlist. 40 years by the late 1980s.
So the government did in fact “guarantee” a car for every citizen. Just not that it wouldn’t be shit. Or that they’d ever get one.
1,651
2,964
24,553
5,662,219
Elon Musk retweeted
Elon Musk was asked how he handles employees who disagree with him publicly.
His answer contradicts every leadership book written in the last 30 years.
"I'd rather have someone who argues with me and is right than someone who agrees with me and is wrong."
The room expected the diplomatic answer. That he values diverse perspectives. That healthy debate makes the team stronger. The standard CEO answer about psychological safety.
He went further. He said the most dangerous person in any company is the one who agrees with you to protect their job. Because that person will let you drive the company off a cliff rather than risk being fired for telling you the cliff is there. The yes-man isn't loyal. He's selfish. He's trading the company's survival for his own comfort.
He said SpaceX has a rule. If an engineer sees a problem and doesn't speak up, and the problem later causes a failure, the silence is treated as more serious than the mistake itself. The person who made the error was trying. The person who watched the error and said nothing was protecting themselves at the cost of the mission.
Think about what that inverts. In most companies, the person who stays quiet and avoids conflict is rewarded with job security. At SpaceX, silence is the fireable offense and disagreement is the job requirement.
Most leaders say they want honesty. Then they punish the first person who delivers it. He built a system where dishonesty through silence is the thing that gets punished. The culture didn't happen by accident. It was engineered to make agreement more dangerous than disagreement.
653
1,778
11,751
1,047,282