Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

xAI joins SpaceX

spacex.com

Post reply on HN
Print view View original

361–370 of 1001 posts

Re: xAI joins SpaceX

#361

Post by bdamm »

eldenring wrote: post #263
pantalaimon wrote: post #112

Earlier quoted context omitted.

Existing satellites manage to keep their equipment that already can consume several kW cool just fine. You might need space for radiators, but there is plenty space in space.

You can line the solar panels and radiators facing away from each other, and the radiators would take up less surface area. I think maybe the tricky part would be the weight of water + pipes to move heat from the compute to the radiators.

Water is not needed to move heat. Heat pipes do it just fine. There's one in your laptop and one in your phone too. It does scale up.

Re: xAI joins SpaceX

#363

Post by uplifter »

rybosworld wrote: post #70

> The basic math is that launching a million tons per year of satellites generating 100 kW of compute power per ton would add 100 gigawatts of AI compute capacity annually, with no ongoing operational or maintenance needs. Ultimately, there is a path to launching 1 TW/year from Earth. > My estimate is that within 2 to 3 years, the lowest cost way to generate AI compute will be in space. This is so obviously false. Fo…

The ISS’s solar arrays each weigh a metric ton and generate 35 KW a piece[0], and that’s just for the power collection.

They’d need incredible leaps in efficiency for an orbiting ton collecting and performing 100 KW of compute.

[0] https://en.wikipedia.org/wiki/Electrical_system_of_the_Inter...

Re: xAI joins SpaceX

#364

Post by 5ersi »

rybosworld wrote: post #70

> The basic math is that launching a million tons per year of satellites generating 100 kW of compute power per ton would add 100 gigawatts of AI compute capacity annually, with no ongoing operational or maintenance needs. Ultimately, there is a path to launching 1 TW/year from Earth. > My estimate is that within 2 to 3 years, the lowest cost way to generate AI compute will be in space. This is so obviously false. Fo…

Launching alone consumes about 75-150kWh per tonne of energy for fuels only (as per ChatGPT).

Planned lifespan of Starlink satellites is 5years.

Re: xAI joins SpaceX

#365

Post by chippiewill »

ohyoutravel wrote: post #171

I am concerned, and haven’t seen anyone else point this out yet, that Musk will move Grok’s CSAM generation capabilities to space to be beyond the reach of terrestrial policing. Does this create some sort of legal loophole here so Musk can do this with impunity?

Ground stations would be the major problem.

Maybe if Elon launched himself and the dev team into orbit and didn't use any ground stations and just Starlink terminals he could start getting into legal loopholes.

Re: xAI joins SpaceX

#366

Post by reliabilityguy »

outside1234 wrote: post #300
Buttons840 wrote: post #50

SpaceX is too big to fail. It's important for national security. I wonder if Elon wants to tangle all his businesses into SpaceX so they are all kept afloat by SpaceX's importance.

Why? Let it fail. Bring back NASA.

> Bring back NASA.

NASA is still here. Unfortunately, NATA fell victim to enshitification by government contracting. NASA even if it wants to simply cannot today design and launch a rocket. :(

Re: xAI joins SpaceX

#367

Post by LeoPanthera »

ecommerceguy wrote: post #25

Too me this smells of projected cash desperation. Do people actually pay for Grok?

There are regularly comments on HN from people who say they pay for Musk's various products, and I am always downvoted into oblivion for suggesting that that is ethically problematic.

There's obviously quite a lot of autocratist illiberals in tech.

Re: xAI joins SpaceX

#368

Post by wmf »

kachapopopow wrote: post #132

isn't this just fraud in broad daylight? I don't get it. Why not at least try to hide it?

It's crazy but legally there's nothing fraudulent here. I'm sure the deal was approved by the boards of both companies.

Re: xAI joins SpaceX

#370

Post by RIMR »

SilverElfin wrote: post #250
darth_avocado wrote: post #222

Earlier quoted context omitted.

He buys twitter at an inflated valuation. Runs it to the ground to a much lower valuation of $9B. [1] Then, his company Xai buys Twitter at a $33B, inflating the valuation up. Then SpaceX merges with Xai for no particular reason, but is expected to IPO at a $1T+ in the upcoming years. [3] I’m not that smart, but if I were, I would be thinking this is an extended way to move the losses from the Twitter purchase on to…

It also makes it impossible for Twitter/X to die, as it deserves. It is by far the most toxic mainstream social network. It has an overwhelming amount of far right supremacist content. So bad that it literally resulted in Vivek Ramaswamy, a gubernatorial candidate in Ohio, to quit Twitter/X - nearly 100% of replies to his posts were from far right racists. Obviously advertisers have not been fans. And it is a dying b…

I am with you 100%.

It was easy to support SpaceX, despite the racist/sexist/authoritarian views of its owner, because he kept that nonsense out of the conversation.

X is not the same. Elon is actively spewing his ultraconservative views on that site.

Now that these are the same company, there's no separation. SpaceX is part of Musk's political mission now. No matter how cool the tech, I cannot morally support this company, and I hope, for the sake of society, it fails.

This announcement, right after the reveal that Elon Musk reached out to Jeffrey Epstein and tried to book a trip to Little St. James so that he could party with "girls", really doesn't bode well.

It's a shame you can't vote these people out, because I loved places like Twitter, and businesses like SpaceX and Tesla, but Elon Musk is a fascist who uses his power and influence to attack some of the most important pillars of our society.

Post reply on HN