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jnsaff2

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xxtomcooperxx.substack.com 6mo ago

Navigating with Starlink-Signals in GPS-Denied Environments

jnsaff2
2pts0
avherald.com 8mo ago

UPS plane crashes near Louisville airport

jnsaff2
421pts438
community.atlassian.com 1y ago

'Work' is the new collective term for all items you track in Jira

jnsaff2
5pts0
news.ycombinator.com 1y ago

Ask HN: Programs that saved you 100 hours? (2024 edition)

jnsaff2
4pts1
twitter.com 2y ago

Shell permanently closes Hydrogen filling stations in CA

jnsaff2
20pts9
twitter.com 2y ago

Timeline: Toyota PR on Solid State Batteries

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2pts2
www.hill.af.mil 2y ago

They put K8s on the F-16

jnsaff2
10pts2
www.ft.com 3y ago

Gates: Reporters are provoking Bing GPT to say bad things

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1pts0
twitter.com 4y ago

Russian propaganda TV broadcasts hijacked by Anonymous

jnsaff2
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www.theguardian.com 5y ago

Benefits from microdosing LSD might be placebo

jnsaff2
3pts0
coders4climatestrike.com 6y ago

An Open Source community that converts cars into electric

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2pts0
www.e-flux.com 7y ago

A Sea of Data: Apophenia and Pattern Misrecognition (2016)

jnsaff2
6pts0
www.hashicorp.com 8y ago

Vault 0.10 released

jnsaff2
79pts10
www.se-radio.net 11y ago

SE Radio Podcast – Brendan Gregg on Systems Performance

jnsaff2
2pts0
github.com 11y ago

Ansible Playbooks for CIS Benchmarks on RHEL/CentOS 6

jnsaff2
1pts0
www.pitchfestoulu.com 12y ago

Startups pitching in icy water (live stream)

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1pts0
en.wikipedia.org 12y ago

Ninety-ninety rule

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2pts0
gigaom.com 13y ago

Joyent goes big on big-data computing and storage with Manta

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10pts0
www.theregister.co.uk 13y ago

German Pirate party punters 'don't pay their membership fees'

jnsaff2
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www.ericsson.com 13y ago

Changing the game before the game changes you. On future of ICT [pdf]

jnsaff2
1pts0

I mean after the initial entry when they stamp the immigrant visa and send you a green card. Is it alright to take 6 to 9 months to getting everything in order in your origin country and getting settled in the US? At some point they will probably start asking questions about why the long absence or are you actually living here etc. Any guidance on how long this actually is or how to mitigate these risks would be helpful.

Also Jones Act: ships from Asia can't pick up cargo from Hawaii on the way and drop it in mainland US. This means that shipping between Hawaii and mainland is much more expensive then it needs to be.

The 0% tax on retained profits is nice as long as your own residency country does not try to tax it. Some countries like the US don't consider this as a shelter and if you are the beneficial owner then still want to tax your company profits there.

Also the 0% retained profits system will come to an end in the next few years due to a worldwide push to have minimum corporate income tax.

The "e" in eResidency does a lot of work. The scheme will not give you any residency rights or obligations in the physical sense. Just forming and running a company in the EU, including tax and banking systems that are aware of your non-resident status and making running a company easier.

As others have said, it mostly makes sense for people outside of the EU. If you have personal residency in Spain then it is questionable whether the easier paperwork in Estonia will offset the need to do some paperwork in Spain as well.

needs plenty of compute besides GPU's

Databases, K/V stores, crawlers, services, etc all still necessary besides GPU's. The closer to GPU's the better and if you have GPU's in your own DC.

There is a gold-rush going on. It needs plenty of compute besides GPU's, this is definitely the time to scale as quickly as possible.

xAI joins SpaceX 6 months ago

For anyone too busy to go through all comments.

The overall sentiment of the discussion is *overwhelmingly skeptical and critical*. While a small minority of users defend Elon Musk’s track record of defying critics (citing reusable rockets and EVs), the vast majority view the "AI datacenters in space" proposal as scientifically unsound and economically nonsensical. Most commenters interpret the merger as a form of "financial engineering" designed to bail out underperforming assets (Twitter/X and xAI) using SpaceX's valuation ahead of a potential IPO.

---

### *Category 1: Technical Feasibility (Thermodynamics & Environment)*

The most robust debate focused on the physics of operating high-density compute in space.

* *The Cooling Problem:

* Numerous engineers pointed out that space is a vacuum and therefore an excellent insulator. While solar panels generate power, getting rid of waste heat from GPUs requires radiative cooling, which is inefficient compared to terrestrial convection (air/water). Users estimated that the radiator surface area required would be massive and structurally prohibitive.

* *Radiation & Durability:* Commenters noted that cosmic rays cause bit-flips and degrade electronics. Terrestrial hardware (like standard GPUs) would not survive long without heavy, expensive shielding, or would require "space-grade" hardening that lags generations behind in performance.

* *Maintenance:* On Earth, failed components are swapped; in space, a failed GPU or drive effectively bricks the unit or turns it into space junk.

* *Latency:* While Low Earth Orbit (LEO) offers better latency than Geostationary orbit, users questioned the utility of high-latency inference compared to fiber-connected terrestrial centers, particularly for complex AI tasks.

### *Category 2: Financial Engineering & Corporate Governance*

A significant portion of the thread analyzed the merger as a financial maneuver rather than a technological necessity.

* *The "Bailout" Theory:* Users widely believe this deal is designed to offload the heavy debt and losses from the Twitter (X) acquisition and the high burn rate of xAI onto SpaceX, which is viewed as Musk's most solvent and valuable company.

* *SolarCity Parallel:* Many compared this to Tesla’s acquisition of SolarCity—a move previously criticized as a bailout of a failing Musk-owned company by a successful one.

* *IPO Preparation:* Speculation suggests this is a play to juice the valuation of a SpaceX IPO by attaching "AI hype" to it, allowing early investors in the struggling X/xAI entities to cash out or convert their equity into SpaceX stock.

* *Conflict of Interest:* Commenters questioned the governance of private companies where one individual (Musk) controls the board and directs mergers that may benefit him personally at the expense of specific shareholder groups (e.g., SpaceX employees or investors).

### *Category 3: Economic Viability*

Users attacked the business logic of launching datacenters into orbit.

* *Cost of Launch vs. Land:* Even with the cost reductions promised by Starship, users argued that land and grid connections on Earth are orders of magnitude cheaper than rocketry.

* *Solar Efficiency:* While solar is more efficient in space (no night/clouds in specific orbits), users argued it is still cheaper to simply build more solar panels on Earth and use batteries than to launch infrastructure into orbit.

* *The "Million Ton" Claim:* Users crunched the numbers on Musk’s claim of launching "a million tons" of satellites, noting it would require an unrealistic flight cadence (e.g., launching massive rockets every few hours continuously).

### *Category 4: Musk's Reputation & Rhetoric*

The thread discussed Elon Musk’s history of promises versus delivery.

* *Skepticism:* Users cited a long list of missed timelines and unfulfilled promises (Hyperloop, Full Self-Driving by 2017, Robotaxis, Mars landings) as reasons to doubt the "space datacenter" timeline of 2–3 years.

* *Mockery of Language:* There was specific ridicule regarding the press release language, particularly the phrase "scaling to make a sentient sun," which many found to be "drug-induced nonsense" or "cultish."

* *The Defense:* A minority of commenters argued that betting against Musk has historically been a bad idea, citing the success of Falcon 9 and Starlink as proof that he can solve "impossible" engineering problems.

### *Category 5: Regulatory, Legal, & Ethical Concerns*

* *Jurisdiction Shopping:* Some speculated that moving AI to space might be an attempt to bypass terrestrial regulations regarding copyright, safety, or content generation (specifically referencing Grok’s lack of guardrails regarding CSAM/deepfakes).

* *National Security:* Concerns were raised that SpaceX is a critical US defense contractor, and merging it with a "chaotic" social media company and an AI firm introduces unnecessary risk and leverage over the US government.

* *Orbital Debris (Kessler Syndrome):* Users worried that launching millions of tons of disposable datacenter satellites would clutter low earth orbit, increasing collision risks and potentially locking humanity out of space travel.

### *Category 6: The "Why" (Strategic Speculation)*

* *Energy Arbitrage:* A few users attempted to steelman the argument, suggesting that if Earth's energy grid becomes the primary bottleneck for AI, space offers the only unconstrained solar power source, despite the cooling difficulties.

* *Vertical Integration:* Some noted this creates a conglomerate similar to Samsung or aggressive Japanese keiretsu, where the goal is total vertical integration of energy, transport, communication, and intelligence.

UK power grid has the Eastenders effect. Where the ending credits of the Eastenders soap signals a large increase in power draw from the grid as people will put on the tea kettle at the end of the show. The grid operators have to dispatch enough power to cover for this.

While the amount of energy used to boil water at 2kW is not significantly different from 3kW (2kW has a tiny amount of more atmospheric losses I think), there is a difference for the impact on the grid. Same energy but more power generating and transmission line capacity needed.

And what he left out of this book (and included in the memoir or in some interview) was that there was a scientific study of women in the area at the time which discovered that a very high percentage of women had birthing complications serious enough for hospitalization that went untreated as they had to go back to their chores next day and there was no hospital anywhere close.

UniFi 5G 8 months ago

A few years ago I was running my UDM. Wifi on 2,4GHz and 5GHz was working fine. Then after an upgrade some of my devices start losing connectivity after a while, happened multiple times a week or day. Only restart helped.

I was going mad until I discovered that only the 2,4GHz ones are losing connectivity. Then I started researching and found out that it was not just me, it was just bad code in firmware that was not fixed in any of the versions that came out before I had enough, sold the device and swore off this garbage.

UniFi 5G 8 months ago

So Ubiquity is trustworthy again?

After the 2.4GHz wifi issues with UDM I swore I will never buy them again.

Haha, a few years back my wife got an M1 Air. It was amazing, for her regular work she charged it twice a week and was on battery almost always.

Then one day the company switched from zoom to teams. She now had to be plugged in constantly.