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Ask HN: What rabbit hole(s) did you dive into recently?

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221–230 of 443 posts

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#221
post #149

Was into cine drones for a while; then discovered FPV. Spent dozens of hours on simulators, now flying actual FPV drones in manual mode. Incredibly addictive. I'm having a hard time focusing on anything else right now.

Any tips on getting started?

Is it possible to start super cheap just to see if I like it and then upgrade?

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#222
post #176

Golf simulation. I found myself in a unique situation where I had the space, computer and projector. So I got a mat, screen and the key piece, a launch monitor. Now I’m playing 9-36 holes of golf simulation almost every day. The tech is great, the setup is never ending. Golf simulation tech is blowing up right now too. I’m not even necessarily a golfer fwiw. But I love the simulator.

I'll never set it up but I'd love to hear about the tech choices/options.

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#223
post #39

This past month, I’ve been reevaluating my dev environment and workflow. My goals are to reduce RSI, be more efficient, as well as learn all my tools as deeply as possible. And have fun! - I’ve ditched VSCode and gone all-in on NeoVim. I’ve spent a bunch of time watching Primeagen, etc., tweaking my vid config and learning how to navigate as efficiently as possible. - Switched from QWERTY to Colemak-DH to hopefully r…

oooh the sofle. i'm curious about your layout! been using a Moonlander for a few years and while I like it, it's just too big. ordered a sofle variant recently and I've been thinking about switching back to a dvorak or trying colemak when it arrives.

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#224

Earlier quoted context omitted.

It was a big moment for me too when I realized that the real world has infinitely many interesting things to do and explore. The real world is incredibly detailed.

Hard disagree. The real world only has pain and suffering. Endless trials and never a payout. Games on the other hand and very detailed and have a well defined path to success.

The hardest part of life is to reward the process over the outcomes. Videogames don't have that constraint.

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#225
post #189

Unrelated to work: the black hole rabbit hole. It started with an article about the hypothesis that planet nine may be a primordial black hole with 3-6 Earth masses. What’s a primordial black hole? It’s one that formed in the first seconds after the Big Bang. We don’t know for sure they exist but many theories and simulations predict them. They’re an excellent dark matter candidate. Could it be that simple? Could at…

Neat! Is the bounce idea incompatible with hawking radiation?

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#226
post #35

So, I decided to install Linux on my formerly-Windows-only laptop, and thought it was cool enough to go full time and ditch Windows completely. The downside was the lack of access to top tier games. No problem though, my plan was to take a break from gaming, figuring that by the time Linux had caught up with compatibility, computers would also be much more powerful and I'd be able to resume gaming at some point in th…

The old-laptop -> install-linux-because-windows-wont-run -> tech-career pipeline is absolutely real. It got me to learn C, graphics programming, operating systems, networks and firewall, literally everything I wanted to do required a couple of days deep in arch linux wiki learning about all kinds of inter-connected systems.

When I ditched Windows and installed Ubuntu 8.04 on my personal computer was my gateway into further tech (building PCs, using a terminal, programming, etc.) and set the foundation for my career.

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#227
post #212

PDF files, and why the heck they are so slow to read. Hours upon hours of perf(1) and fiddling with ugly things in C. My main takeaway is everyone in the world is doing things HORRIBLY wrong and there's no way to stop them. (Digression: did you know libpng, the one everyone uses, is not supposed to be an optimized production library—rather it's a reference implementation? It's almost completely unoptimized, no really…

> a very popular format that gets EXTREMELY high compression ratios on bilevel images of types typical to scanned pdfs Funny you say that, https://en.wikipedia.org/wiki/JBIG2#Character_substitution_e...

I can still remember this cool talk about that. https://www.youtube.com/watch?v=7FeqF1-Z1g0

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#228

I’ve fallen into the plant tissue culturing rabbit hole. I was selling excess trimmings of aquarium plants locally on Facebook marketplace and made a surprising amount of money, and my kids really enjoyed it (they got a cut for helping me out). I thought hmm, this could be a great excuse to make a little business around this, teach them some skills, get them thinking more constructively and feeling a sense of agency…

Sweet. I spent a few years cultivating mushrooms and found the hobby to be very rewarding. One can grow (legal) medicinal and gourmet mushrooms on a small scale with very little money. I recommend people interested give it a go because it's fun and offers a lot to learn. :)

Did you collect the spores yourself? Because that’s where most people leave.

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#229
post #198

Group theory. Something is incredibly beautiful to me about classifying the kinds of symmetry things can have. I’m trying to understand where the sporadic simple groups come from. Starting with the Matthieu groups. So far it seems to be due to some anomaly in Pascal’s triangle, but I’m still trying to put it together. “Another Roof” on YouTube has a good video about this.

I'm over a decade out from my maths undergrad degree, but I still remember how beautiful Group Theory felt. Enjoy it!

Re: Ask HN: What rabbit hole(s) did you dive into recently?

#230
Today in Toronto, Canada, a man that was charged with First Degree murder of a police officer was acquitted. I'd only really absorbed the initial news story in passing. The initial news releases relayed the police account of the incident (a man running over a police officer with his car) that it was a "deliberate and intentional act". During the trial, and with today's acquittal and subsequent lifting of a publication ban, we learned how different the public perception of the initial events were compared to what actually transpired. Thus, it's interesting to use technological tools (search, or wayback machine) to see how the story was originally framed and how subtle differences can affect perception. My hope is that the event at least makes people question their own assumptions borne of limited or misleading information in the earliest publications of any news event involving the death of a police officer.

Even today, I'm seeing conflicting reporting of quotes. For example the CBC has one article that quotes the police chief:

> Outside court, however, Toronto Police Chief Myron Demkiw struck a different tone. "While we respect the judicial process and appreciate the work of everyone involved in this difficult case, we were hoping for a different outcome," he said.

https://www.cbc.ca/news/canada/toronto/umar-zameer-acquittal....

However, the video of the Chief's statement is slightly different (and quoted correctly in another article):

> "While we respect the judicial process and appreciate the work of the 12 citizens who sat on a very difficult case, I share the feelings of our members who were hoping for a different outcome," Demkiw said.

https://www.cbc.ca/news/canada/toronto/umar-zameer-verdict-1...

The first quote cuts out essential information and does not note that the quote was not verbatim (as presented). It's especially problematic as the quotes might have subtle but different interpretations now that his suggestion of "hoping for a different outcome" is being addressed. (There's a subtle difference between 'sharing feelings with someone that hopes for a certain outcome' and 'hoping for a different outcome' -- and this could be major if it's seen as the police services suggesting the wanted the man, who was declared innocent, to have been convicted.)

(One other possibility is that the Chief did in fact mention both lines, and that they are so similar because it was based on his official public statement).

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