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An Explanation in Four Acts

Content warning: as with the last article, if you’re currently struggling with your mental health, consider skipping this, especially if you’re a parent. Contains emotionally heavy content and some foul language.

Act one: 2026, a reader’s home

“I don’t buy it.”

“Hm?” He looks up from his laptop in the cozy living room to see that his reading partner has done the same, this site’s last article on both their screens.

His partner gives him a skeptical look. “This guy is supposedly concerned about AI killing everyone? Causing human extinction? He thinks there’s a double-digit chance of it happening before he hits retirement age, and an even higher chance of some non-extinction-level AI disaster?”

“Yeah, that’s what he wrote.”

“Then why’d he go and have a kid?”

He closed his laptop, processing the objection. “You think he shouldn’t have?”

“I’m not saying that. But, I mean…” He paused for a moment to collect his thoughts. “If he really saw the situation as that bleak, you’d think that he’d choose not to. Either because it would mean watching his kid die young, or because having a baby would take away from his ability to actually contribute to solving the problem.”

“So you think he’s lying?”

“More or less. I think he’s exaggerating his fears. How else could you explain someone who sees the world like that choosing to have a kid?”

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The Single Biggest Doubt in My Life and Career

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Content warning: if you’re currently struggling with your mental health, beware reading this. I’ve hesitated for​ ​years​ ​to write and post this, largely because I worry that it might negatively impact my friends and family, most of whom don’t have any leverage to affect the issues I’m about to discuss.

If you work for a major tech company or have any influence in government, though, you may have that leverage. If you are in that fortunate position, please consider reading anyway.


I work in AR glasses software, which is a notoriously fuzzy field, as we’re building computer programs for hardware that doesn’t exist yet. Funding for these kinds of speculative projects has been rocky lately, and I’ve been having a lot of doubts over whether I really like the direction the AR industry has been going the past few years.

But it might surprise you to know that the biggest career doubt has nothing to do with that. It’s not the economy, it’s not related to the future of the AR/VR industry, and it’s not related to the amount of opportunities personally available to me. If only it were that simple.

No, my biggest career doubt is this: will my kids live to see adulthood?

I’m completely serious.

Let me explain.

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A Tech Worker's Guide to Interest Rates

Over the past few years of tech industry ruin, I’ve had friends and family worriedly ask me and my wife how our jobs have been going. “I’ve been seeing news of layoffs,” they say. “Why is it that almost every single tech company seems to be tightening its belt, cutting costs, and laying people off all at once?”

Among other causes, I usually mention government interest rates. And I’m sometimes met with confusion: “What do interest rates have to do with it?”

A Google search for the phrase “zirp” on news.ycombinator.com, showing discussions about how the end of ZIRP led to unemployment, how ZIRP allowed companies to do crazy things, and so on.

Discussions about interest rates on Hacker News, a popular online forum for techies.

Online, people also bring up interest rates. They say low rates means “money is cheap”, or that the craziness of the 2010s—where money flowed into weird startups, crypto, and NFTs—was a “ZIRP”: a Zero Interest Rate Phenomenon.1

But I find explanations of this are often aimed at people who already have some sophistication in finance and investing.

So let me give it a shot. I’ve come up with a standard answer for friends and family, and I may as well write it down.

  1. Sometimes you see “ZIRP” standing in for “Zero Interest Rate Policy” instead. Same difference. ↩︎

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Total Eclipses Are Cosmic Horror

A vignetted banner image showing a grainy close-up of the sun at totality.

People kept saying that a total eclipse is a totally different experience from a partial one. I didn’t understand why.

I’d heard it from Randall Munroe of xkcd fame as far back as 2017. He reiterated the message this year. But the one that stuck most in my mind was a quote from this article by Anne Dillard (emphasis mine):

I had seen a partial eclipse in 1970. A partial eclipse is very interesting. It bears almost no relation to a total eclipse. Seeing a partial eclipse bears the same relation to seeing a total eclipse as kissing a man does to marrying him, or as flying in an airplane does to falling out of an airplane. Although the one experience precedes the other, it in no way prepares you for it.

I’d seen partial eclipses a few times in my life. The earliest was back in the 90s in Portugal, the latest in California in 2017. They were neat. With some eclipse glasses, you could see something taking a bite out of the sun, and the world got a tiny bit dimmer.

The sun at the peak of the partial eclipse of 2017, as seen through some clouds. Most of the sun is obscured by the moon, leaving a crescent shape.

It was pretty cloudy back in 2017.

But this idea—that there was something different about total eclipses that I was missing—stuck in my brain in the years since then. So I made plans to see this year’s eclipse from inside the path of totality, ultimately ending up at a parking lot of a suburban mall in the Dallas area for the main event.

And now that I’ve seen it, I have to tell you: they were right. A total eclipse can only be described as otherworldly.

Let me try to explain why.

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Use AI as a Reverse Search Engine

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Update April 2026: this article is now partially obsolete. These days, all major search engines include AI models that will search the internet for you and summarize the information in the results.

To adapt this article’s lesson to today, I’d say: go ahead and use those AI search engines, but make sure you also follow the included citations to see where the AI is getting its information from. Use your judgement as to whether or not the sources support what the AI is telling you: sometimes, they still just make stuff up, or use sources that are unrelated to what you’re actually asking about.

The unedited original article follows below.

My previous article was all about how AI can’t be trusted. Maybe you think this means I’m a luddite, raging against the new technology of the day.

That’s pretty far from the truth. If anything, being at the cutting edge of technology gives me a pretty good view of what new developments are and are not good at. I maintain that AI chatbots are, as of right now, somewhat questionable at giving you reliable answers to questions, or explanations of topics you’re not already familiar with, particularly in niche fields or in areas where the details matter. You can use them for this if you want, but be careful and double-check the answers, which usually means going to a search engine to verify whatever it tells you.

But AI chatbots have one major strength: you can put a lot of words into them, and they’ll generally understand those words.

This is something that’s unprecedented in the history of computing, and it lets you do the opposite of what you do with a search engine. Instead of giving it a term and asking it to explain it, give it an explanation of what you want, and ask it to suggest you the terms to look into.

An AI-generated illustration. Prompt: A person entering many paragraphs into a computer. The computer is condensing all that down into a single phrase in a search bar: “the words you want”. The AI chose to intepret that as an explosion of papers behind the computer monitor, which is pretty neat.
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