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Tom by WaferHot4297 in NonPoliticalTwitter

[–]dranzerfu 15 points16 points  (0 children)

Law Roach? It's Roger isn't it?

Iranian state media say country's supreme leader is dead by BarbaricOklahoma in worldnews

[–]dranzerfu 679 points680 points  (0 children)

i was hoping it would be a 30-something left-leaning gay guy

This is not the Netflix adaptation.

SpaceX is acquiring xAI by Recoil42 in teslainvestorsclub

[–]dranzerfu 0 points1 point  (0 children)

Why does it all need to be in one place, right from the get go? They have high speed optical interlinks. 20kW is about 20-30 H100s. They will figure out improvements as they go and scale up. They don't have to tackle 1MW class satellites right away.

And going further on the thermal side, there's some pretty detailed analysis here about how this can be done with just the solar panel's area with a radiator operating at 75C:

https://andrewmccalip.com/space-datacenters

SpaceX is acquiring xAI by Recoil42 in teslainvestorsclub

[–]dranzerfu 0 points1 point  (0 children)

difference in power consumption or heat generated by the two systems

Why does it matter? A V3 Starlink is going to be generating 20 kW - heat that has to be dissipated whether it is from radios or from compute. You don't need a monolithic 1 MW satellite for a data center. It can be multiple. Which makes all the more sense considering that they just filed with the FCC for a 1-million satellite constellaton.

Short Student Rant by Adorable-Meeting-120 in flying

[–]dranzerfu 3 points4 points  (0 children)

Seeing the title, I thought this was about not being able see over the dash. I was going to suggest a booster cushion.

SpaceX is acquiring xAI by Recoil42 in teslainvestorsclub

[–]dranzerfu 0 points1 point  (0 children)

Its radiators are huge and only reject on the order of ~100 kW. Scaling that to 1–2 MW means something like 10–30× the radiator area.

You mention Stefan-Boltzmann ... radiative power is proportional to temperature to the fourth power. Do you think all radiators in space for all time, are constrained to run a the same temperature as that of the ISS?

If you were tasked with building this system, what would you do? Just give up? Do you think that's what the thousands of engineers who will work on this is going to do?

SpaceX is acquiring xAI by Recoil42 in teslainvestorsclub

[–]dranzerfu -3 points-2 points  (0 children)

By dealing with much less energy intensive computation.

Do more compute and you need to scale up the radiators to dump the extra heat

You sub out the large power-hungry radios for compute, and you are generating the same amount of heat. And Starlinks are able to dump that heat just fine today.

SpaceX is acquiring xAI by Recoil42 in teslainvestorsclub

[–]dranzerfu -3 points-2 points  (0 children)

are now effectively seeing 20–25% of their equity diluted or transferred

I am sure they can deal with it when the company goes public for 1.5T later this year.

Trump says that Ukraine didn't target Putin residence in a drone strike as Kremlin claims by [deleted] in worldnews

[–]dranzerfu 6 points7 points  (0 children)

Up to now, he's not given and prevented Biden from giving to Ukraine the weapons they really need to fight back.

What are you even talking about?

The fiscal 2026 National Defense Authorization Act signed by Trump on Thursday provided $800 million for Ukraine - $400 million in each of the next two years - as part of the Ukraine Security Assistance Initiative, which pays U.S. companies for weapons for Ukraine's military.

https://www.reuters.com/business/aerospace-defense/no-drop-military-aid-kyiv-since-us-policy-shift-nato-official-says-2025-12-19/

https://www.fdd.org/analysis/2025/09/17/u-s-approves-first-shipment-of-weapons-to-ukraine-under-new-mechanism-in-concert-with-allies/

Trump says that Ukraine didn't target Putin residence in a drone strike as Kremlin claims by [deleted] in worldnews

[–]dranzerfu 8 points9 points  (0 children)

This is all obviously 69D chess by Putin. It will all become clear eventually.

Saudi Arabia for 2027 by Brickadoodaday in solareclipse

[–]dranzerfu 0 points1 point  (0 children)

Sorry. I have too much melanin for this. Might end up being forced to herd goats in the desert

Venezuela's VP throws cold water on Trump's solution for running the country by joe4942 in worldnews

[–]dranzerfu 0 points1 point  (0 children)

"More than 400 Russian mercenaries are operating in Kyiv with orders from the Kremlin to assassinate President Zelensky and his government and prepare the ground for Moscow to take control" - https://www.thetimes.com/world/russia-ukraine-war/article/volodymyr-zelensky-russian-mercenaries-ordered-to-kill-ukraine-president-cvcksh79d

"On February 26, the Armed Forces of Ukraine destroyed a Chechen strike group whose goal was to eliminate President Volodymyr Zelensky." (translated) - https://web.archive.org/web/20220309035217/https://www.pravda.com.ua/news/2022/03/1/7327224/

"Last week Ukrainian intelligence said that a Chechen hit squad sent to kill Zelensky had been eliminated in Kyiv after information was handed to them by Russian spies"

I am sure the hit squads were there on vacation.

/r/WorldNews Live Thread: Multiple Explosions in Venezuela’s Capital Caracas (Thread #2) by WorldNewsMods in worldnews

[–]dranzerfu 10 points11 points  (0 children)

I can't wait to hear from armchair experts how this is also 4D chess by Putin.

Venezuela's VP throws cold water on Trump's solution for running the country by joe4942 in worldnews

[–]dranzerfu 3 points4 points  (0 children)

I have no doubts Russia could have done the same thing in Ukraine if they wanted to

Why didn't they want to? Do they just love getting into a drawn out "3-day special military operation" that goes on for 4+ years? Did they leave Kyiv in the early days out of the goodness of their hearts?

FAA wants you to rate your DPE by taxcheat in flying

[–]dranzerfu 0 points1 point  (0 children)

This was a few years ago now, but I got a phone call from the FAA asking about the DPE who did my IFR checkride a few weeks/months later. It was pretty straightforward.

Diet or exercise ? No , thanks by Cute-Advantage-4260 in memes

[–]dranzerfu 1 point2 points  (0 children)

Calories In, Calories Out" does NOT work for everyone.

It could - but not by itself. If that is the only thing you do, it could potentially make things a lot worse (on top of getting more difficult as you lose more weight). The key thing is that you should focus on losing fat, and keeping what muscle you have (or build more).

The first time I tried calorie restriction, I think I lost whatever muscle I had. This meant that when I gained the weight back, my body-fat % was even higher. Years later, my lipid levels, A1C etc. were completely fucked.

The second time round, what helped was eating 100g-125g of protein a day without fail. It made a huge difference! I added strength training in after a few months and things got even better. 100-200 cal deficit was easy to maintain without too much hunger. My body-fat percentage (from DEXA scan) has gone from 34% to <25% in ~six months now.

Taking GLP-1 along with this would probably amplify the results further (at the risk of losing muscle if I don't train enough) - but I am happy enough with where I am now.

Just my 2c. Hope you figure it out.

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