Austin Walters
austingwalters.com · Personal blog · on HN since 2013
Austin Walters writes about software engineering topics like PostgreSQL search and epoll, alongside essays on COVID vaccine data, firearms, and investing.
What HN saysHN links it for technical posts and contested data essays; commenters criticize his views and cite a follow-up on vaccine risks.
21HN people shared it
9linked it in comments
188stories submitted
872story points
1 year agolast shared
2013people per year2026
Most-shared posts
- 1Fast Full-Text Search in PostgreSQL4 people · 25 points · first shared 2018 · discussion on HN
- 2Edge Detection in Computer Vision4 people · 20 points · first shared 2015 · discussion on HN
- 3The Last Free Generation (2018)3 people · 60 points · first shared 2018 · 34 comments on HN
- 4The Cache and Multithreading3 people · 37 points · first shared 2014 · 5 comments on HN
- 5Export a Command Line CURL Command to an Executable3 people · 11 points · first shared 2016 · discussion on HN
- 6COVID19 Vaccine Deaths & Risks3 people · 6 points · first shared 2021 · 3 comments on HN
- 7I/O Multiplexing Using epoll and kqueue System Calls3 people · 4 points · first shared 2014 · discussion on HN
- 8Firearms by the Numbers2 people · 33 points · first shared 2020 · 8 comments on HN
- 9Increasing Battery Life on an Arch Linux Laptop (ThinkPad T14s)2 people · 11 points · first shared 2020 · 2 comments on HN
- 10Convolutional Neural Networks (CNN) to Classify Sentences2 people · 10 points · first shared 2019 · discussion on HN
- 11Cost Per Calorie from a Vending Machine2 people · 8 points · first shared 2014 · 3 comments on HN
- 12Covid-19 vs. the Economy2 people · 6 points · first shared 2020 · 2 comments on HN
- 13Tiny Handcuffs2 people · 5 points · first shared 2019 · discussion on HN
- 14Trends on Hacker News: Activity, Growth, Community2 people · 3 points · first shared 2018 · discussion on HN
- 15The Pay Scale2 people · 3 points · first shared 2019 · discussion on HN
What HN people wrote when they linked it
lettergram · 2017-01-12
First, I hold all my investments for a year then dump them (occasionally, I'll rebalance before a year). I've been doing this for 5 years, averaging 35% returns. I said 10% a year, because I'm assuming one down year I will "lose" significantly.
I always do this in March, after my tax return, because that's my "play money". All the money I made from the prior years investments + tax return I usually dump into other investments that hold up over time i.e. gold, real estate, etc. or invest in my business.
Here's this years, which has been unusually good:
http://imgur.com/a/j8YWR
I pick the high movers using a method I'm not going to describe at the moment. However, I am making a website which will help others invest as I do. It'll be a paid service, but I'm not going to charge outrageously. You can follow on my blog, I plan to release it sometime in late spring:
http://austingwalters.com/
Feel free to follow me, and I'll send out an update when I'm ready to release the stuff.
agentultra · 2022-09-02
Excellent article! I too have moved towards buying refurbished laptops only and using them for as long as I can. Thinkpads are a decent line for this as they're built to be user-serviceable and have a great market for parts.
The hard part is actually the software. Many industry developers will definitely choose convenience and ease-of-development over most other priorities like efficiency. Operating systems as well.
My refurbished Thinkpads all run stripped down Linux distributions. I recommend getting a good battery and tweaking the power settings to get the best life out of them (eg: https://austingwalters.com/increasing-battery-life-on-an-arch-linux-la…
spadez · 2021-06-18
A follow up to the post..
https://drowningindatadotblog.wordpress.com/2021/05/27/linking-excess-…
And there is also one from CDC data..
https://austingwalters.com/covid19-vaccine-risks/
citilife · 2019-11-01
The problem with this is that it's prone to error (doesn't have error correcting bits). Unfortunately, that combined with speed of scanning is really what's key for codes.
I have worked in the space, making some strides in speed & error correction.
Some of my public work is here: https://austingwalters.com/chromatags/
Your best bet is actually an overlay of two codes. A regular image (for humans), plus a code embedded in a color space (see linked post for how to do that).
clearal · 2014-03-05
An Objectivist complaining about fairness. That's rich.
"I hold to several key ideals, I hold that I am a man. I believe that there is nothing higher than myself, no god, I am a god, I can make the world into what I wish. I hold that I have no right to impede another human being and no one has a right to impede me. I aspire to be the best I can be and attempt to only deal with others who believe as I do. I work hard for everything I own and I intend to keep all I can. I am against taxes, I am against a welfare state, I am against anything which forces me to help others that I do not wish to help. What I am is an Objectivist of sorts. I never wish my freedom to be taken from me and will always be willing to fight for it if there is a battle I can win. I believe in reason, logic, and that greed is good." [1]
[1] http://austingwalters.com/about/
spamizbad · 2021-06-19
Well, take the second link for example: https://austingwalters.com/covid19-vaccine-risks/
1) The chart shown mixes up lipid concentrations for protein spikes from the original cited paper and data
2) R00-R99 coded deaths will always be higher for "new" data. Over time, these are revised and coded differently. So if you look backwards from today, it will always seem like this number has gone way up the last month or so. The author notes this in his post (good), but leaves the original one in its place (also fine, but just be aware).
The author's hypothesis is not supported by data, and the arguments put forth are based on misunderstanding or misinterpreting things.
Also if the fear here is the mRNA vaccines are dangerous, there's always the more traditional Janssen (J&J) vaccine which does not use mRNA.
mensetmanusman · 2020-11-23
https://austingwalters.com/firearms-by-the-numbers/
Not quite everywhere else... unless you are adding # of bombs + number of prisoners + number of murders... not sure that is a meaningful number though :)
gruez · 2020-11-10
>Or Michigan’s mail in ballots: https://austingwalters.com/the-dead-vote-in-michigan/
So the author turned up a grand total of... 5 "dead" voters, in a state where biden has a lead of 148,635 votes. That's unlikely to make a difference. The comments to that post also said it was likely a data-entry/clerical error, which makes the story even worse.
>Basic argument is the house sets the rules. Pennsylvania’s Supreme Court had not right to extend the deadline.
I find this argument unconvincing. Laws set by the state legislature is normally bound by the courts. If we go with the literal interpretation, it would also mean that the legislature can enact a law saying "only white men can vote" and the courts wouldn't be able to do anything about it.
Philipp__ · 2017-02-26
From Bryan's interview it's clear they've solved the problem like that. From article I linked, it doesn't indicate so.
Take a look here[1], at 'EVFILT_SIGNAL'. But does that mean that we have to manually attach signal to monitor, and then we receive "we're done". But that's kinda similar to what you have to do with epoll, the difference is that kqueue structure encapsulates functiona of 'epoll_wait' and 'epoll_ctl'?
[1] https://www.freebsd.org/cgi/man.cgi?query=kqueue&sektion=2
Edit: sorry for spamming with links, but I find these things really interesting, look here http://austingwalters.com/io-multiplexing/ specifically at 4 steps after kqueue code, I think that explains well. So it looks like we wait for signal 'done' after which we rewatch.