rhelz

24 ms·

451.
by rhelz 2y ago
Perhaps a better example would be a fingerprint or a retinal scan instead of social security numbers as natural keys for a person.
452.
by rhelz 2y ago
Natural keys are (quite literally) essential to defining entities. Quine had a great slogan for this: "No entity without identity!" Natural keys are how you determine the identity of an object, which is to say, if you have two
453.
by rhelz 2y ago
> many - a sickeningly large amount How many are we talking about here? How many years of experience did they have?
454.
by rhelz 2y ago
High productivity is certainly necessary for high wages. But this makes the original article's point even more mysterious: if the workers had high productivity before the industrial revolution, that high productivity was not ca
455.
by rhelz 2y ago
As an American, I had to read LOTR about 5 times before I started to perceive the class-based nature of the world of Middle Earth. Class here is not as in-your-face as it is in Great Briton. What's fascinating to me is that this sort
456.
by rhelz 2y ago
Do you have grey hair? If so, you are screwed. Recruiters and hiring managers will not interpret you as taking a principled stance against leet coding. They will simply conclude you are too old to be able to do leet coding. As far as ha
457.
by rhelz 2y ago
Did china have a ready supply of clock and watchmakers?
458.
by rhelz 2y ago
Curios claim in the article: > High wages come from high productivity, which, I think is patently false. Wages are set by supply and demand, same as anything else. High wages incent increases in productivity, not the other way around.
459.
by rhelz 2y ago
Very nice write-up. Can you expand a bit on one of the phrases you used: tensors as essentially matrices of matrices? Also, the connection between the wedge product and tensors is still pretty fuzzy for me.
460.
by rhelz 2y ago
Thanks. It does help with the crushing, though, that apparently somebody got it to work--thereby proving, at the very least, I wasn't crazy.
461.
by rhelz 2y ago
// It's a scenario that's unbelievable // I understand your skepticism. Here's the thing: pretty much every time you go to your boss and say "hey, I think I can improve this" you are going in
462.
by rhelz 2y ago
I loved most of my time working at Bloomberg. Super smart people, a very engineering-centric culture. The politics, however, were very different from the west-coast companies I worked at before, though. You might not think that there are
463.
by rhelz 2y ago
Certainly. The problem is, not all cost savings are welcome. What if your manager is halfway through a 2-year, $5 million project----which you made obsolete in 2 days using a swig + lua + a 1-page long script? Is your manager going to go
464.
by rhelz 2y ago
Why, oh why do I have to click on every link I see????
465.
by rhelz 2y ago
Man, I tried at Bloomberg to get my managers to let me incorporate lua into Tradebook's trading system. They just simply couldn't get it. I'd try to explain and they would look at me like I was from mars or something. Ev
466.
by rhelz 2y ago
I'd rather just have additional salary, which I could invest/use however I wanted. What's more, companies and the 1% also want us to have additional salary, they just don't realize it yet :-) This business of 99% goin
467.
by rhelz 2y ago
College grads still make on average roughly 2x what high school grads make, so yes, so college is worth it in an economic sense. Yes, some majors are more lucrative than others, yes you can screw up anything, but in aggregate and on averag
468.
by rhelz 2y ago
if machines can tutor humans to do calculus, why do humans have to learn calculus?
469.
by rhelz 2y ago
What if I'm reading very well commented code?
470.
by rhelz 2y ago
The very very old solution I'm adverting to is Euclid's axioms. They don't define what "point" or "line" means, they just specify some axioms about them.
471.
by rhelz 2y ago
chuckle thanks for this heroic effort to charitably interpret me as actually being able to type in a coherent sentence :-) But, alas, I was just trying to type in "meta" and it was auto-completed to "meet". I really,
472.
by rhelz 2y ago
sigh I really hate autocorrect. It was supposed to be "meta", not "meet". It's bad enough that most of the content I read these days is being generated by LLMs. Slowly and inexorably, even the content I write
473.
by rhelz 2y ago
I'm reminded of that line in "The Watchmen"-- What happened to the American Dream? It came true. You are looking at it. There's nothing wrong with capitalism. It's hard to name a time when the capitalists had it
474.
by rhelz 2y ago
chuckle I am soooooo happy I'm not a researcher working on that product!
475.
by rhelz 2y ago
It is junk science--when a skill is truly mastered, it is done entirely without thinking bout it. Flow. Conscious, reflective thought is very slow and is typically only invoked when all else fails. When you are programming--really sucke
476.
by rhelz 2y ago
This is a very old consideration (cf https://www.jstor.org/stable/2183530 ). If you want to frame a 'universal defining property', you have to frame it in some language. The definition, therefore, is inevitab
477.
by rhelz 2y ago
Bullshit. Masks are useless against an airborn pathogen---how in the world would anybody think that is remotely plausible? I suppose you wouldn't mind if your doctor operated on you without wearing a mask? I suppose you wouldn&#x
478.
by rhelz 2y ago
Germany was abla to overcome its unemployment problems, structural or otherwise, by making it easier to be fired :-) If its not a decision you'll be stuck with, for better or worse, till death do you part, its easier to take chance.
479.
by rhelz 2y ago
Reading from sqlite databases can be as fast(or even faster under some conditions) than just reading in files. It's hard to beat for lightweight applications, and should you find you need a little less lightweight storage as your ap e
480.
by rhelz 2y ago
"Honesty" isn't his only schtick--he also wants us to believe we are going around all the time making irrational decisions. Here's one putative "cognitive bias": "Linda is 31 years old, single, outspoken,

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