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a1371

1,983 karma · joined January 2, 2017

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a1371··on What’s Behind the Naming of TBD54566975?
I was curious when I read the name in that Tweet too. It's cryptic marketing for crypto people, so, well done.

Decentralized trust is an interesting concept because at least we know that so far trustless systems have been extremely bottlenecked and inefficient.

Still, I'll hold judgement until there is a repo I can fork. If it's anywhere close to NFTs that's a no for me. High likelihood since it's coming from the same crowd.

a1371··on SketchUp for iPad: 3D Visualization on iPad
I have thought Sketchup to hundreds of people in online and in person classes. Nowadays I don't do that anymore because Trimble effectively killed off a vibrant community by putting Sketchup desktop behind a paywall.

I think the web version is great, but it doesn't have extensions, and it has limited exporting functionality. You can't have the freedom you used to have in 2018 anymore.

I think Sketchup was at it's best when it was under Google. Their interest was to put it in more hands for the sake of Google Earth. So they gave users a lot of freedom.

a1371··on Overhauling Mario 64's code to reach 30 FPS and render 6x faster on N64 [video]
Not the same game, but there is this for half-life https://youtu.be/sK_PdwL5Y8g
a1371··on Detailed Assemblies for an Airtight Small Home
It's interesting to me that hacker news likes building-related content so much, which happens to be my education other than... well, computers.

Air tightness is a critical step forward. I'm glad we are talking about it. Thinking more holistically, I would not go with the double-stud wall. You get lots of thermal bridging, and when it gets cold, your outer studs freeze. I know it's considered a straightforward system, but venturing out of one's comfort zone to do an exterior insulated system has enormous durability and performance benefits. Let's build our homes for centuries, not decades, folks!

a1371··on Doing small network scientific machine learning in Julia faster than PyTorch
"small" appears to be key here:

> When we get to larger matrix-matrix operations, such as 100x100 * 100x100, we can effectively write off any overheads due to memory allocations. But we definitely see that there is a potential for some fairly significant performance gains in the lower end! Notice too that these gains are realized by using the pure-Julia LoopVectorization.jl as the standard BLAS tools tend to have extra threading overhead in this region (again, not optimizing as much in this region).

> But, if you have been riding the GPU gospel without looking into the details then this plot may be a shocker! However, GPUs are designed as dumb slow chips with many cores, and thus they are only effective on very parallel operations, such as large matrix-matrix multiplications. It is from this point that assumption (2) is derived for large newtork operations. But again, in the case of small networks such GPU kernels will be outperformed by well-designed CPU kernels due to the lack of parallel opportunities.

a1371··on Heatsink Skiving (2021) [video]
That's fascinating to watch. I am curious why this would be a faster & more robust production process compared to extrusion. I would have guessed it's easier to build it some conventional way.
a1371··on Incident with GitHub Actions and Codespaces
Seven... Million? Though it says the incorrect billing is still not fixed there.
a1371··on Persepolis of ancient Persia rendered in WebGL
This is an amazing presentation I wish instead of constant scrolling you could move forward by just holding your click/tap on a forward button on the screen. Sounded like a better UI
a1371··on Startup failure stories: 20 months in, 2K hours spent and 200K € lost (2021)
The thing that stands out to me the most is the sentiment. This reads like a big rant as in saying "I did all the things textbooks say, why didn't it work out?"

That is as if to say "I've gone to the music school, why am I not a k-pop mega star yet?"

A lot of people will not look at the 200k this person didn't make as "lost"; rather the cost of learning expensive lessons.

The first lesson should have been that we're not in 2007 anymore. Sprinkling tech on random things has a small chance of working out. They did not have any domain knowledge or connections to schools nor restaurants. They were just users of them, like everybody else.

Building a startup is a beautiful thing but it requires relentless optimism and actually feeling the problem. Enough to say that's how YC finds its cohort.

a1371··on FTC sues Intuit for its deceptive TurboTax “free” filing campaign
Intuit is one of the few companies that I don't hear any good things about them. They always do something shady, last one I recall was sharing employee salary info with Equifax.

That's why despite my bookkeepers protests, we moved to another accounting service and when they bought MailChimp I pulled my whole company out of that too.

I understand workplace is not always a place for activism, but I could switch with reasonable effort and it made me feel good not to fund this sort of behavior.

a1371··on I wasted $40k on a fantastic startup idea (2020)
This was a fun read, but I think it came to the wrong conclusion. The real issue imo was "I had practically only weeks of runway". You just don't have time to make it happen.

As a fellow start up founder, I see most of my job being just buying time for the business. Buying time to make, to talk, and to think.

It wasn't like the tool had no value to Susan, maybe with a booth at her go-to annual expo, mentioning a few past lawsuits the tool could avoid, and an affinity partnership with her industry association, the tool would have become a fact of life for her.

It's a lot of work, I'm not denying that. Yet, this is the sort of thing YC's idealized startup stories often fail to say. If "instant Product Market Fit" is so good, then how come practically every new high flying SV startup is using loads of VC money to "bend the market to the product"?

Exciting Startups have to venture far, it's not about "we let you buy your potatoes online" anymore. Chances are you won't get deals by talking to people once. I wouldn't say that means your idea is bad.

a1371··on New type of ultraviolet light makes indoor air as safe as outdoors
"safe" in this context is virus safe. Can have a pretty good application for places where virus transmission is an issue, as long as people like me don't feel an unease about being bombarded with UV 10 hours a day.

When I think of "Safe" for air, I also think of PM2.5 and other airborne compounds. A more permanent fix to make the air fully safe is improving building ventilation.

a1371··on Google Analytics 4
I thought that was just me. Just learned that in this article. I actually was not using some stuff that said they support GA4 because I thought they were legacy. Sounds like a branding fail to replace "universal" with a random number.
a1371··on Lasers could cut lifespan of nuclear waste from a million years to 30 minutes
I've noticed that the word "could" in the title is usually a giveaway that the idea is at the hypothesis level.
a1371··on Static torrent website with peer-to-peer queries over BitTorrent on 2M records
So this is the true Web3 then?
a1371··on Brave Talk: Unlimited, private video calls, in browser
I don't know how everyone's experience has been with Brave. For me, I installed it and used it for a few minutes, then forgot about it. A few days later a notification popped up on the screen advertising a cryptocurrency. Distressed, I looked for the culprit and it was Brave. So I uninstalled it. Not sure why I would use them for anything ever after that.
a1371··on Ask HN: How much gas we could save in EU if we reduce our heating temp by 3°?
Yes, many people argue that they function better in the cold. That very well may be true. People's metabolism and feelings are very different.

That's taking about what's generally accepted. The body of literature in this field defines a "comfort zone" that spans around and above 20°C. it's been studied that with better comfort there is better attention. Also being cold appears to weaken the immune system.

a1371··on Ask HN: How much gas we could save in EU if we reduce our heating temp by 3°?
23% ish.

It's not naive. Going to "pure" building science (I studied this in uni) the formula for the building heat loss is Q=U.A.dT where dT is the temperature difference between indoors and the outdoors.

If you assume that outdoors is 5°C on average in year, and indoors is 21°C, dT is 16. reducing the indoor temp to 18°C puts the dT at 13.

Since everything else stays the same, you'd expect a 23% decrease in heat loss (Q). And that much less energy need to be replenished.

In the real world buildings are more complicated than that. Also you may risk giving more people diseases and reduce cognitive abilities when things get cold. So perhaps also tell the public to dress warmer and drink more hot fluids.

a1371··on You can have geothermal power everywhere if you drill deep enough
No, I mean we should use the motion of the water, not its heat. Like in hydroelectricity where water spins a turbine instead we are using a steam generator like gas fired plants
a1371··on You can have geothermal power everywhere if you drill deep enough
A lot of people like to talk about nuclear as a climate solution. Geothermal is the most gargantuous nuclear plant we can fathom, all we have to do is to extend a pipe and harvest it.

Here is the thing, a lot of that tech is coming from oil and gas. An industry with a track record of leaving the land they enter in terrible shape.

I think we have to start over with geothermal and look at it more like hydro electricity. We should harvest the electricity on the way down, not the way up. I wish I'd get rich enough one day to devote my life to this.

a1371··on Census quirks; using UBC area as an example
For context, this fellow is a very knowledgeable local and his visualizations of the Canada's census data are great. Right now Canada is publishing its latest census, so it's a hot topic.
a1371··on Spam accounts in 2022
You mean like people who do voiceovers on Fiverr?
a1371··on No one cares about your redesign
If you remove the redundant letters, you'll get "me, me me, me" which is very fitting imho
a1371··on Filters to block and remove copycat-websites from DuckDuckGo, Google and other
Hadn't thought about using uBlock Origin for this. I'll use the same technique to filter out Pinterest too then.
a1371··on Traffic Simulator
This is delightful! As someone with urban planning background, my friends often stubbornly bring up in the conversation that "why doesn't the city just build more lanes on the roads?". I have to explain how that's not how it works and the more lanes cause more turbulence.

You can try it with this! In one of the road scenarios make lots of lanes. Then give the system a "shock". I.e. move one of the sliders until you cause a traffic, then move it back. See how long it takes for it to clear up. The problem is that cars start changing lanes and cause mayhem. Lots of failure of this kind in the USA.

a1371··on 22% of Italians have stopped using social media in last year
It doesn't talk about whether the 22% includes messaging apps too. The line between social media and messaging is pretty blurred. Someone might stop using fb but join a WhatsApp group
a1371··on No-JavaScript Fingerprinting
For me the fingerprint changed after the first refresh, but then it stayed the same. I wonder what's different in the first visit
a1371··on Datawrapper: Create charts, maps, and tables
A relatively simple tech that everyone can build for a very generic use; yet, once you actually see it, you realize none of the chart making tools you have worked with are as straightforward. I wish I could think simple like this.
a1371··on The Notorious Board Game That Takes 1,500 Hours to Complete (2018)
Am I having an issue or there aren't any pictures of the game in the article? All I see is a hamburger of ads between every paragraph
a1371··on Is the bored ape yacht club worth $5B?
If you notice from their messaging, what the brand focuses on is not the "ape", but the "club"; or "yacht club" to be more exact. People wanting to belong to so called high status societies goes back thousands of years.

Their offering is so shallow that the high prices seem paradoxical. Which is a great thing for a brand because the paradox hints that the value is intrinsic. "It's big because it's cool". Whatever technical issue we have with them is irrelevant... Until June when no one even remembers this.

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