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chewbaxxa

166 karma · joined October 10, 2018

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chewbaxxa··on Ask HN: Where are the good search engines for mathematical formulas?
ChatGPT and family has been effective for me, even to connect equations I’m familiar with to areas I hadn’t encountered before.
chewbaxxa··on Failing grades soar with AI usage, dwindling math skills in Berkeley CS classes
You are not storing these things in your head at the expense of anything else. You’re “training” the existing underutilized capacity in your brain for something useful.
chewbaxxa··on Building my childhood dream PC
wow, this whole blog is a treasure!
chewbaxxa··on Nx compromised: malware uses Claude code CLI to explore the filesystem
not sure if it's just bait but their is_prime function does not actually do what its name suggests.
chewbaxxa··on Malware infiltrates Pidgin messenger's official plugin repository
Pidgin (and its OTR plugin) used to be the most popular client for OTR (Off-The-Record, an encryption protocol) messaging. That was my experience about 10 years ago and back then I think the plugins were known to be a weak point in its security.
chewbaxxa··on An Analog Network of Resistors Promises Machine Learning Without a Processor
If it was desirable you would still want to isolate it
chewbaxxa··on Remove “This incident will be reported.” from user warnings
They are just paying their respects.
chewbaxxa··on Oldest water on earth, in a Canadian mine (2021)
by measuring the Deuterium content
chewbaxxa··on Polynomial interpolation
See also (M^T M)^-1 M^T
chewbaxxa··on British Motorway Database
Problem is that most of the time the signs are wrong.
chewbaxxa··on FTX’s collapse was a crime, not an accident
I spoke to a few Alameda/FTX people over drinks before summer. They were delighted to brag about the lack of separation between the two entities. Really there wasn’t any.
chewbaxxa··on I spent a year designing a low profile, minimal mechanical keyboard
The comment section is full of people complaining in general. Nice job OP, I think it looks great.
chewbaxxa··on See Thru Jet Engine [video]
The pressure is high at the intake
chewbaxxa··on An oral history of Bank Python
Sure we add up the numbers, but there are thresholds for everything anyway. We might not be concerned about something within a 1MM range let alone a floating point inaccuracy. The uncertainty is accounted for already.
chewbaxxa··on Fewer young men are in the labor force, more are living at home
I got this too. Even with a strong interest in the business area and multiple hours of interviews going well: “You’d be a great fit here”, “You were technically strong”, … , “We don’t think you really want this job”.

I really wanted that job. That’s only the most recent, but I have had an overwhelming number of these experiences. I know my own worth, but to convince someone to actually let you work for them - impossible.

chewbaxxa··on Interview with CEO of rsync.net: “no firewalls and no routers”
Not sure why you couldn’t just resize the window here?
chewbaxxa··on The Most-Used Mathematical Algorithm Idea in History (2016)
That’s an autobiography. You read it to hear the author talk about themselves.
chewbaxxa··on What are the most important statistical ideas of the past 50 years? [pdf]
This is exactly statistics. This is an expectation of a utility function with respect to some distribution.
chewbaxxa··on What are the most important statistical ideas of the past 50 years? [pdf]
What do you mean by hide the uncertainty? To me Bayesian modelling is about making explicit the uncertainty.
chewbaxxa··on U.S. says John McAfee indicted over fraudulent cryptocurrency schemes
I guess they should go ahead and indict Musk and the rest of crypto Twitter too then.
chewbaxxa··on Sneakerheads have turned Jordans and Yeezys into an asset class
I don’t really agree that Apple is similar. I am no Apple fanboy, but if you want hardware will all the same features, complexity and polish; in particular a phone, there is no competitor that can make an identical clone. Printing vinyl on a hoodie though, that’s a pretty well solved problem.

As for expressing yourself, does it really count? These brands are marketed at you in a million different ways. Then by purchasing what are you expressing?

chewbaxxa··on Sneakerheads have turned Jordans and Yeezys into an asset class
My impression is that most of this stuff is bought by shallow people to show off their wealth to other people. Meanwhile, many others waste a significant portion of their income on them. These gullible people buy overpriced clothes simply to keep up because, through very skilful marketing, this ordinary apparel is held up as something that you should desire or be impressed by.

In the end though, it’s just money that flows from an invested individual’s income to feed a disinterested hedge fund’s balance sheet. It is pretty cringe, and sad on a large scale imo.

chewbaxxa··on Show HN: A high-performance TensorFlow library for quantitative finance
They’re completely different tools. Tensorflow is a specialised matrix math library. Pandas is just for sql-like data handling.
chewbaxxa··on Can Quantum Physics Explain Consciousness? One Scientist Thinks It Might
One example:

> Two decades ago, neurophilosopher Patricia Churchland and physicist Max Tegmark were among those who launched outright broadsides. Hameroff and Penrose responded, and Hameroff published a list of 20 testable predictions yielded by Orch-OR.

Anyway, it seems that his research has also inspired better equipped scientists to delve deeper.

chewbaxxa··on In Noisy Equations, One Who Heard Music (2014)
Your comment is grey, but I think you’re right.
chewbaxxa··on Imperial mathematician scoops $3M Breakthrough Prize
Warwick is particularly well regarded for its mathematics department.
chewbaxxa··on Staff Report on Algorithmic Trading in U.S. Capital Markets [pdf]
That would result in what was described above. You are taking unnecessary risk by committing to place an order at some point in the future. You might not be so sure a second from now.
chewbaxxa··on Math.min(Math.max(num, min), max)
Math.min(a, x) == at_most_a(x)

Math.max(b, x) == at_least_b(x)

at_most_b(at_least_a(x))

A similar kind of thing is really common in measure theory (limsup, liminf) and option payoffs.

chewbaxxa··on Modified Gravity Theory Passes a Critical Test
You could study computer science and then go to a large corporation to help them maximise their ad revenue, or you could study and do something like this instead. Depends what motivates you.
chewbaxxa··on Airbus' self-flying plane just completed taxi, take-off, and landing tests
So was the person who dubbed statistics ML
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