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Chinjut

3,222 karmajoined 12 anni fa

Submissions

Elon Musk under fire for stoking anti-immigrant riots in Belfast

nbcnews.com
15 points·by Chinjut·29 giorni fa·0 comments

Nevada Governor's office covered up Boring Co safety violations

fortune.com
336 points·by Chinjut·8 mesi fa·74 comments

I Worked All over Silicon Valley. This Is How It Lost Its Spine

nytimes.com
11 points·by Chinjut·8 mesi fa·5 comments

comments

Chinjut
·9 giorni fa·discuss
What is the advantage of asking AI to build an engine cloning these existing engines, vs just using these existing engines.
Chinjut
·9 giorni fa·discuss
When you look at Super Mario World, do you see moving animated sprites?
Chinjut
·10 giorni fa·discuss
Fine by me. Let's give it a shot.
Chinjut
·10 giorni fa·discuss
What if you believe (correctly) that a corrupt government intends to punish you exorbitantly beyond reason for possession of these zines? Is it still immoral to move the zines? Is it so immoral that it therefore justifies 30 years of imprisonment for moving the zines?
Chinjut
·11 giorni fa·discuss
Hacker News is for people who believe in the hacker ethos "It is immoral to do anything the government takes issue with and you deserve whatever punishment you get for doing so, unless it was breaking regulations to make money, the highest calling".
Chinjut
·11 giorni fa·discuss
A lot of people in these Hacker News comments are accepting the framing that moving the zines is evidence tampering and therefore deserves a 30 year sentence. What crime are zines evidence of?
Chinjut
·13 giorni fa·discuss
I watched Sesame Street and Reading Rainbow and stuff like that as a child. Seemed fine and even good.
Chinjut
·18 giorni fa·discuss
"You'll leave with a strategy report"

"No report, no lecture"

Somewhat contradictory wording.
Chinjut
·20 giorni fa·discuss
This is like how one often wants to distinguish the points of an affine space from the vectors representing displacements in that space (there is no distinguished origin for the physical world, but there is a distinguished concept of zero displacement). One can add a vector to a point to get a point, or a vector to a vector to get a vector, but cannot add a point to a point to get another point. Yet, it is meaningful to treat a linear combination of points in an affine space as yielding another point in the same space when the weights of the linear combination sum to 1.

The exact same thing is happening here, only multiplicatively, where z1^(1/2) * z2^(1/2) is a combination with two weights of 1/2 (thus, summing to 1). It is geometrically meaningful to treat 2d vectors (displacements in a plane) as complex numbers, raise them to exponents summing to 1, and then multiply these together to get another vector in the same plane. But it is not generally geometrically meaningful to just multiply one vector by another vector to get a third vector in the same space (because this would require distinguishing some particular direction and magnitude as "1").
Chinjut
·20 giorni fa·discuss
The basic issue with geometric algebra is that geometric vectors generally do not have a distinguished notion of unit magnitude (is unit magnitude 1 meter? 1 mile? 1 inch?), so it is silly to work in a framework that requires pretending they do (since the definition of the geometric product of two vectors is dependent upon this choice). Dimensional analysis (a very handy way of tracking mathematical symmetries and thus sanity checking results) goes out the window when working with mixed grade multivectors.

This is not an issue when working with non-mixed-grade multivectors, for which dimensional analysis works just fine in the ordinary way. As the linked article notes, exterior algebra/the wedge product is great. Thinking about exterior powers of vector spaces is great. It's the further move of forcing everything into a Procrustean bed of Clifford algebra that is misguided for almost any application other than some spinor stuff.
Chinjut
·27 giorni fa·discuss
Yes, let's please give police officers the copious (cop-ious?) benefit of the doubt they have earnt.
Chinjut
·28 giorni fa·discuss
If it's so worthless, let me have it instead of him.
Chinjut
·28 giorni fa·discuss
The stock market is not definitionally "reality" in the sense being used. It's perfectly fine to look at the stock market and consider it "detached from reality", in the sense being said.
Chinjut
·mese scorso·discuss
I have a PhD in category theory and know what the Leech lattice is and I still don't understand what is going on here. What is the value of using the Leech lattice to store memory?
Chinjut
·mese scorso·discuss
One bug after another over at GitHub. What is going on over there?
Chinjut
·mese scorso·discuss
What's stupid about the disclaimer?
Chinjut
·mese scorso·discuss
Very sad to see Hacker News discussing science funding. This has nothing to do with the hacker ethos of maximizing corporate profit.
Chinjut
·mese scorso·discuss
Hypocrite didn't even use AI to write this lovely poem.
Chinjut
·mese scorso·discuss
That's fortunate for you that what you enjoy doing and get meaning from is capable of providing you a living via market income. That's not true of many others. I try to make time for what I enjoy doing and get meaning from. But for me as for many, it does not provide income.
Chinjut
·mese scorso·discuss
Many of us do not particularly enjoy the work our employer has us do, nor believe in what the company we work for is trying to achieve. It's not like we get to choose its aims, and it's not like we have alternatives where we get to do so either. Our lives are spent working on someone else's goals.