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shepardrtc

2,439 karma · joined May 11, 2014

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shepardrtc··on RisingWave: An Open‑Source Stream‑Processing and Management Platform
I really like their architecture diagram, it uses colors very well to contrast the different technologies. Does anyone know what they used to make it?
shepardrtc··on NASA study reveals Venus crust surprise
Something like a solar powered space elevator that just blows atmosphere into the sun
shepardrtc··on IAC confirms existence of a Super-earth in the habitable zone of a Sun-like Star
Or they would be forced to figure out technology that we would consider science-fiction, assuming it's possible. To consider our tech as the pinnacle is the wrong approach, I think.

Perhaps we've had it too easy here - moderate climate, oil as an easy fuel source, and gravity that isn't too oppressive. I wonder what technology would arise in a more difficult environment, such as this superearth.

shepardrtc··on Euro-cloud provider Anexia moves 12,000 VMs off VMware to homebrew KVM platform
Either their sales team absolutely screwed this up, or they just don't want to bother with the VMware platform anymore. Maybe both?
shepardrtc··on macOS menu bar app that shows how full the ISS urine tank is in real time
I know they're working on ways to recycle the urine into water. Can you add a display of water levels and somehow show when it transfers between the two?
shepardrtc··on Supernovae Evidence for Foundational Change to Cosmological Models
If this is the case then the paper is easily dismissed, correct? How is it being published if the flaws are immediate, obvious, and completely destructive to the idea being presented? I'm legitimately asking - I've published papers and reviewed them, and if I thought something was so thoroughly wrong, I certainly wouldn't give it the ok.
shepardrtc··on Supernovae Evidence for Foundational Change to Cosmological Models
Well his idea was that the laws of physics actually change depending on the distance from the galactic center. Far enough out, information can be transferred faster than the speed of light. Too close and life stops working. Which honestly seems much more fun than gravity slowing things down a bit.
shepardrtc··on An invisible desktop application that will help you pass technical interviews
I did that for my previous job and I loved it. Had plenty of time to get over my nerves and then build something cool. And then brag about my choices in writing.
shepardrtc··on Show HN: Whirlwind – Async concurrent hashmap for Rust
How do you determine the number of shards to use?
shepardrtc··on Watch as Tesla burns in flooded Florida garage days after Hurricane Helene
There's a difference between the battery in a gas car and the lithium batteries in EVs. Lead-acid batteries are not inherently flammable, and they won't burn underwater. Lithium-ion, on the other hand, reacts with water to produce hydrogen gas and can undergo a thermal runaway. They also produce oxygen during the combustion process so they will burn underwater.
shepardrtc··on Watch as Tesla burns in flooded Florida garage days after Hurricane Helene
They're going to have to waterproof them like they do with Jeep 4xe's. Well, excuse me, they SHOULD waterproof them. But I don't think someone will like the extra cost.
shepardrtc··on Quantum researchers cause controlled 'wobble' in the nucleus of a single atom
When you communicate, you're sending energy - whether it's sound waves or radio waves or whatever. Energy can't travel faster than c through spacetime. Now if you manipulate spacetime, such as a wormhole or whatever, then the end result can effectively appear as if it's FTL but its still going at c, its just traveling through less/compressed space.
shepardrtc··on Fermilab is 'doomed' without management overhaul claims whistleblower report
I wonder if there were any nice dinners had by the administration and Red Hat sales.
shepardrtc··on Transferring energy from nitrogen to argon enables 2-way cascaded lasing in air
Does anyone know how this would enable remote sensing technologies, as the article says?
shepardrtc··on Self-driving Waymo cars keep SF residents awake all night by honking
Do the cars actually listen for the honks?
shepardrtc··on The Webb Telescope further deepens the Hubble tension controversy in cosmology
> "therefore I am right about everything ever"

I'm sure scientists have to deal with people jumping on them about their model being wrong, but this part is clearly exaggeration.

shepardrtc··on The Webb Telescope further deepens the Hubble tension controversy in cosmology
Where does she say she's following a hunch? She was very certain when she said that.
shepardrtc··on The Webb Telescope further deepens the Hubble tension controversy in cosmology
That seems like an exaggeration.
shepardrtc··on The Webb Telescope further deepens the Hubble tension controversy in cosmology
From the article:

> That the three methods disagree “is not telling us about fundamental physics,” Freedman said. “That’s telling us there’s some systematic [error] in one or more of the distance methods.”

Freedman is saying that the model is not wrong.

shepardrtc··on The Webb Telescope further deepens the Hubble tension controversy in cosmology
> so it now seems more likely that our model of the universe is wrong.

Whenever a scientist says that it's not possible that the model is wrong, then I just roll my eyes. Of course models can be wrong - and isn't that exciting? Good on them for making sure that there are no errors in the measurements - that's incredibly valuable and absolutely necessary - but I'm really excited to see creative models being thought up that are drastically different. My personal hell is the universe being consistent and boring.

shepardrtc··on Cats appear to grieve death of fellow pets – even dogs, study finds
> I very much doubt cats understand the concept of death and can "grieve,"

Cats are very loving animals that can bond deeply to others. They just show it in different ways.

Of course they can grieve.

shepardrtc··on New study simulates gravitational waves from failing warp drive
The Dark Forest theory is fear-mongering anyway. If there's a civilization out there that wants to conquer others, it just has to send a probe to every star out there. Sufficiently advanced automation would allow this to happen without much work on their part. In theory, WE could do that right now, though very clumsily and with many failures. 3D printing, AI, harvesting materials off asteroids. Not outside of possibility, just hard at our level of tech. Now imagine the boogeyman of the Dark Forest theory - they would obviously have a greater level of tech if they're so dangerous, and it would be much easier.
shepardrtc··on New study simulates gravitational waves from failing warp drive
Well don't forget that Earth had it's reset button smashed 66 million years ago. Let's say another world started out at the same as we did but never encountered such a cataclysm. Even if they took an additional 65 million years to develop, they'd still be a million years older than us.
shepardrtc··on I rebuilt my algorithmic trading platform in Rust. I'm filled with regret
I built an algorithmic trading platform in Python and used Cython to speed up the hotspots. No regrets.
shepardrtc··on Show HN: R2R V2 – A open source RAG engine with prod features
LlamaIndex can ingest directories if you want to do bulk.
shepardrtc··on ChatGPT Fails to Understand Causation
Here's the example:

"Can you give me a real-life example of three events, A, B, C, where A and B are correlated, B and C are correlated, but A and C are uncorrelated."

Claude 3.5 gets it correct for me ¯\_(ツ)_/¯

shepardrtc··on Some people with insomnia think they're awake when they're asleep
A few years ago I had severe sleep issues caused by anxiety disorder. Instead of getting proper medication, I used marijuana, phenibut, and eventually benzos (prescribed by a doctor) to sleep every night. I was only on the benzos for a couple weeks but that was enough. Combined with everything else, I was in a bad place. I stopped the marijuana immediately, and over the next 3 months I weaned myself off the phenibut. Phenibut, if you've never heard of it, is one of the most addictive drugs out there. During that time I would maybe sleep an hour at night, if that. Some nights I never went to sleep at all. And occasionally I would dream while I was half-awake. It was such an odd experience - one that is very hard to describe. I was aware that I was still somewhat awake, but my mind would start to dream. Maybe it was just hallucination. Or maybe I really was sleeping, but I just thought I was still awake. Overall it was a terrible experience that felt very much like torture. In the end I get on the proper meds and I sleep fine now with no more issues.

PSA: Remember kids, just say no to drugs.

shepardrtc··on Some people with insomnia think they're awake when they're asleep
A few years ago I used marijuana every night to go to sleep. It really, really screwed my sleep up. I started taking sleeping pills and got hooked on those. Very bad experience. Don't use any of that stuff, period. Even if the marijuana feels like it's working, it interferes with your REM sleep or something like that.

In the end my sleep issues were caused by anxiety disorder. Once I got on medication for that, I didn't have any further issues. Marijuana, sleeping pills, whatever, they're all just masking the symptoms of some other problem.

shepardrtc··on Koheesio: Nike's Python-based framework to build advanced data-pipelines
> I find this type of thing scary as an outsider looking in. How a company so large has such immature engineering continues to astonish me.

It's management that doesn't want to risk their positions by doing the very difficult business of either starting over or properly simplifying their stack. It's not easy, it's not quick, but if they can't even answer that basic question then they need to do the work.

shepardrtc··on Codestral: Mistral's Code Model
gpt-4o gets it right on the first try for me. Just ran it and tested it.
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