HNHacker News
TopNewBestAskShowJobs

andrewprock

543 karma · joined November 13, 2014

Cleaning up, migrating, and rebuilding a legacy systems for over 10 years.

Integrating with AI and machine learning for over 20 years.

Need help with either of those sticky problems, send me an email.

email: andrewcprock [at] gmail.com

submissionscomments
andrewprock··on U.S. stock market returns – a history from the 1870s to 2022
Yes, for better or worse, the US navy is the moderating force that maintains the Pax Americana. The US essentially controls all oceanic trade. As one might expect, having a global stranglehold over efficient trade corridors puts the US in a very unique situation, militarily, economically, and diplomatically.
andrewprock··on Apparent size of Andromeda galaxy compared to the Moon
Arc fleet ship b
andrewprock··on Celsius Execs Cashed Out $40M in Crypto Before Halting Withdrawals for Customers
And this aphorism conflates ownership with possession. Crypto is a bad actors fantasy turned reality.
andrewprock··on US border forces are seizing Americans' phone data and storing it for 15 years
Yes, the pretext matters. Border searches is the topic of the article.
andrewprock··on Google employee resigns after ‘retaliation’ for protesting Israeli contract
That's quite a parlay of arbitrary requirements.
andrewprock··on Nobody wants to teach anymore
The formula on that page is a fixed benefit based, not on average salary, but the average salary at the end of the teacher's career - last five years.

This is nothing like a 401k.

andrewprock··on Nobody wants to teach anymore
There have to be consequences for actions like that. If there are no consequences, then yes teaching will become impossible.
andrewprock··on Nobody wants to teach anymore
Most of this change is driven by something other than need. The high school mathematics curriculum is a bit of a funny beast in the US, but it is certainly not the weak point in the system.
andrewprock··on Who’s your favorite public thinker?
Bertrand Russel, by a wide mile.

Spent years proving 1+1=2, and delved deep into the intersection between reason and philosophy.

andrewprock··on Nobody wants to teach anymore
When it comes to education pensions, CA is not an outlier. The precise terms vary, but I think most public educators have access to similar pension programs.
andrewprock··on Nobody wants to teach anymore
Pensions are typically not paid based on average teacher salary, but paid based on terminal teacher salary. Defined benefit pensions are quite different from a 401k.

In our district, once you qualify for a pension you get 2% of your terminal salary per year you work. If you work for 40 years, you will be paid 80% of your last year's salary.

andrewprock··on Nobody wants to teach anymore
Teachers in the US get decent salaries and good pensions. It may be different from from state to state, but in California you can work for 25 years and retire without ever having to work again by the age of 50.

You'll have to learn to live on a low salary for the first 5-10 years of your career. But pensions are paid based on your terminal salary, not your average salary. For elementary school teachers in my district the terminal salary was in excess of $100k as of 2017.

andrewprock··on The Collapse of Complex Societies (Book Review)
The Dawn of Everything has to be one of the worst books on anthropology out there. It's a thing disguised polemic dressed up as archeological history.

I find Yuval's work to be more digestible, in part due to better writing, and in part due to less pretense.

I would also suggest Susan RiceBauer's The History of Ancient Civilizations, Jack Weatherford's Genghis Khan and the making is the modern world, and Lars Brownworths Lost to the West: the forgotten Byzantine Empire.

andrewprock··on The Collapse of Complex Societies (Book Review)
The repeal allowed banks and investment houses to be run under the same roof, changing the aggregate risk profile of financial institutions greatly, in the direction of significantly higher, and now correlated risk.
andrewprock··on Machine Learning (1997)
It's very relevant.

The key innovation of machine learning was formalizing the process, not the specific algorithm. Mitchell's book does a superb job of illuminating that process across a diverse set of approaches.

andrewprock··on It’s time to leave the leap second in the past
Doing away with leap seconds does not solve the problem. It only transforms it into a different problem. It's addressing the same problem that February 29th speaks to. You can do away with leap seconds, and you can do away with February 29th. But doing so with change the fact that the length of a year is not a while number of days, nor will it change the fact that the length of the year is non-stationary.
andrewprock··on A fake job offer took down Axie Infinity
But that is one of the underlying features of crypto, the ability to transfer coins without accountability.
andrewprock··on The End of Localhost
And so the cycle repeats.

Thin client, fat client, thin client, fat client, ...

andrewprock··on 90% of software engineering done today is integrating poorly documented APIs
If reading RFCs is a gate, then it is a pretty bad one. They are public, free, well known, and generally well written.
andrewprock··on An update on the campaign to defend serious math education in California
Again, philosophically and computationally, statistics is more complicated.

And again, you do need calculus to do statistics. Maybe you're saying: "If someone does the calculus part for you, you can use this one equation to solve this one question."

That's akin to calling a spelling test literature. You are confusing practice with knowledge. Anyone can bang on a drum. That does not make them a drummer.

andrewprock··on An update on the campaign to defend serious math education in California
She doesn't even have a math degree.
andrewprock··on An update on the campaign to defend serious math education in California
It's not a goal. It's a ceiling.

Many high schools offer mathematics through Calculus. You can typically get to that course at the regular high school pace if you were able to take Algebra 1 in 8th grade. If you were ahead of that pace, then you are typically left with few options outside of taking college courses.

andrewprock··on An update on the campaign to defend serious math education in California
This is quite clearly false. Most people on the planet have zero to little understanding of statistics. They get by just fine. The field of Calculus is actually fairly simple compared to stats. By and large calculus is the study of the slope of a line, and the area under the curve.

Statistics is more complicated philosophically and computationally, as you do in fact need calculus to do statistics, since a fundamental tool of statistics is evaluating the area under a variety of distribution curves.

andrewprock··on An update on the campaign to defend serious math education in California
No one is suggesting that all students take calculus in high school.

What is being recommend is that no one take calculus in high school.

Both of these ideas are bad, but only one of them informs the California Math Framework.

andrewprock··on Faculty hiring dominated by graduates of elite institutions
This is why the scientific method is a robust process. When bad theories are investigated, the unyeildimg accumulation of evidence will eventually result in an improving model of objective reality regardless of individual idiosyncrasies.
andrewprock··on Why won’t anyone teach me math?
Eigenvectors are quite useful in compression.
andrewprock··on Why won’t anyone teach me math?
Yes, saying "I have never needed to factor a quadratic equation" is akin to saying "I have never needed to fly on an airplane".

Both statements can be true, but neither negates the utility of the activity.

andrewprock··on Why won’t anyone teach me math?
I think you are describing two different activities.

You can make something, and

You can engineer something.

If what you are building is a complex distributed software system, if you are not aware of algorithms and the implications they have on the system, then you are not engineering, you are just making. And whatever it is you are making is going to fail a lot sooner that if you were aware of the algorithms and the implications.

andrewprock··on Why won’t anyone teach me math?
Or the course may have been taught on a curve.
andrewprock··on An alarming trend in K-12 math education: a guest post and an open letter
Yes, parents do sue districts ... and win.

What does that say about the district?

← PreviousPage 4 of 20Next →