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Mandelmus

410 karma · joined February 7, 2020

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Mandelmus··on Why Apple Will Switch to ARM-Based Macs (2014)
You base that confident statement on what exactly?
Mandelmus··on The Crime That Killed Shinzo Abe
> That’s because the ethnicity of a criminal is usually not a relevant detail.

That’s a big assumption rooted in a moral framework rather than in objective science.

Mandelmus··on The Crime That Killed Shinzo Abe
Your thinly veiled accusation of racism notwithstanding, I don’t think there’s anything morally deplorable in thinking the media should help the public build a more statistically representative model of the world we live in, regardless of the cultural background of criminals. As an example, I don’t think the demographic of young white guys fare too well in the mass shooter statistic, but omitting this reality isn’t of public benefit.
Mandelmus··on Porting Graphing Calculator from C++ to Swift
> I love Swift’s syntax. So much of the repetitive boilerplate code that was necessary for C++ melted away in Swift, leaving only code necessary to represent the logic, making the meaning clearer.

I switch between Python, Swift, and C++, and it's funny how both Python and C++ make me wish I were writing Swift, albeit for different reasons.

Mandelmus··on I finally got Twitter after years of not getting it
>Block retweets which aren't quotes.

How do you do that? I only know you can disable all retweets from a particular person you follow. I didn't know you could disable non-quote retweets from all accounts you follow.

Mandelmus··on The impact of digital media on children’s intelligence
>Games are designed to be addictive

It depends strongly on kind of game, and especially on the business model involved. Gacha games, free-to-play, and similar models are very much optimised around addictiveness. Personally I've found that story-based finite games, i.e. the ones you play through and then you've experienced it, are much better in those respects. Unfortunately those seem to become much more rare these days.

Mandelmus··on The World’s a Mess. So They’ve Stopped Saving for Tomorrow
It is stupid, but I see this attitude in several people I personally know who are in their 20s. I'm talking about people who could afford to save or invest some money, but don't.

I keep telling them that whatever doom and gloom scenario they expect of the future will for sure be even gloomier for poor people than for those who have at least some money set aside.

Mandelmus··on IQ scores are falling and have been for decades (2018)
> italian universities being ranked 1/1000th lower than US universities

I don't even know what that means. That sounds like they'd be ranked only a tenth of a percent lower than US universities, which doesn't jive with the rest of your point.

Mandelmus··on K-Nearest Neighbors
I feel like the percentage of "Let me make a blog post or YouTube tutorial about this thing I learned about yesterday" content on technical topics is trending towards 100% as time goes on.
Mandelmus··on Nvidia Research Turns 2D Photos into 3D Scenes
The key difference is that this TensoRF is discrete (like a JPG) whereas NeRFs are continuous (like vector graphics).
Mandelmus··on Nvidia Research Turns 2D Photos into 3D Scenes
No, there is no mesh. A NeRF is a neural network trained to work as a function f(x, y, z, θ, φ). You put in your viewing position (x, y, z) in 3D space and the direction (θ, φ) you're looking into (where θ and φ are the angles for up/down and left/right, respectively), and the function will output a tuple (r, g, b, σ) of the colour (r, g, b) and the material density (σ) of whatever you see at the pixel in that direction and from that position.

You can generate a mesh from the density information this function gives you, but for that you need to discretise the continuous densities you get out.

Mandelmus··on StyleNeRF: A Style-Based 3D-Aware Generator for High-Resolution Image Synthesis
This might fix that: https://dorverbin.github.io/refnerf/
Mandelmus··on Why won’t anyone teach me math?
My guess would be the dividing line goes between science and engineering. The top level science work requires a lot more (mathematical) rigor than the top level engineering jobs. (I say that as more of an engineering type myself, albeit with a confidently above-average degree of mathsiness.)
Mandelmus··on Ralph Ammer – Make Me Think
It’s a rather cutesy and forced connection to make a point, but you can absolutely ignore that passage and the article still has a point. Word association games, even tenuous ones, are much more accepted and enjoyed in art and design disciplines, whereas science/engineer types are allergic to them if the semantics aren’t absolutely watertight.
Mandelmus··on A $3B bet on finding the fountain of youth
Of course there exists no problem that HN won’t unironically propose solving with a startup.
Mandelmus··on A $3B bet on finding the fountain of youth
Researching immortality or unnatural longevity isn't worth the investment for a society because a society of immortals becomes either stagnant or unsustainable. But making individual billionaires immortal is something billionaires might find worth investing in.
Mandelmus··on A $3B bet on finding the fountain of youth
“A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents die, and a new generation grows up that is familiar with it.”

– Max Planck[1]

Often paraphrased as "Science progresses one funeral at a time."

I don't think we really want immortality or unnatural longevity.

[1] https://en.wikipedia.org/wiki/Planck%27s_principle

Mandelmus··on Approved Cameras
When I watched The Hobbit in high frame rate (HFR) it was jarring for the first 10 minutes, but after that I really enjoyed the look, and wished it would become the new standard.

Unfortunately the list of HFR movies remains rather short, with each grand new attempt at popularising HFR having failed: https://en.wikipedia.org/wiki/List_of_films_with_high_frame_...

Mandelmus··on In Response to My first impressions of Web3
See https://news.ycombinator.com/item?id=29716900 re:Axie Infinity and the “ saving the Philippines/Vietnam from poverty” bs
Mandelmus··on Wolfram Cloud
So did I but since they changed the input field on their website to the weird new “Math Input” UI, most inputs that would just work perfectly fine a year or so ago now don’t get parsed correctly anymore. It’s made WolframAlpha virtually unusable for me. No idea what happened there.
Mandelmus··on The Matrix Awakens: Unreal Engine 5 Techdemo [video]
It was directed at the all-male agents, no?
Mandelmus··on Julia 1.7 Highlights
Agreed, I also found that rather confusing.
Mandelmus··on Julia 1.7 Highlights
I’m doing the same this year. AoC in Julia and Pluto.
Mandelmus··on Introduction to Algorithms, Fourth Edition – The MIT Press
> people who like to see things happen immediately

Our modern culture and lifestyle cultivates a desire for instant gratification in ways that make rigorous study of math and theory incredibly hard for most people who don't have the guiding structure of a math degree programme to counter-balance these forces.

Mandelmus··on Overloaded: Is there simply too much culture?
I could well imagine those lines in a dystopian 80s scifi novel right next to Neil Postman’s “Amusing Ourselves to Death” on the shelf.
Mandelmus··on Higher Math for Beginners (1987)
I think attention spans have shortened (which is arguably devastating for maths), and the materials considered "state of the art in modern pedagogy" are the ones that take that into account in ways that a book from 1987 does not.
Mandelmus··on Chinese athlete accuses former top Communist Party official of sexual assault
Why did she consent to a relationship after having been raped and traumatised by him before?
Mandelmus··on A new biography of John von Neumann
Could you recommend some notable history books related to computer science that don't fall into the Great Man history genre?
Mandelmus··on Affinity 1.10
Love their software but Designer still (with 1.10) takes almost 30 seconds to launch on my maxed out MacBook Pro 16”.
Mandelmus··on Your Lifestyle Has Already Been Designed (2010)
> you spend money to convenience yourself and save time/energy because you value your time/energy at that higher rate of income.

Agreed, but the way I put it is that the higher consumption is done to compensate for the stresses that come with the work life(style). I have a lot less patience and mental energy to do impulse control or to judiciously weigh the pros and cons of this versus that purchase when in a stressful work environment compared to when I'm not. I'd say that counts as "a result of systemic forces".

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