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@adit thanks for all the sheep. You made me think for a few late night hours.

New blog post: the Monty Hall problem in pictures I read the solution for Monty Hall years ago and understood it, but this is the first explanation that has really clicked for me. I think this is a really fun post that shows how counterintuitive probability can be!

Any probability fans here? New blog post dropping shortly

This literature clock is the most wonderful thing I’ve seen in a long time. Checking the time becomes a moment of pure joy 😍


This is the teaser, full interview in a couple of weeks

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I got interviewed about Grokking Algorithms! The interviewer is the wonderful Gabi O'Connor, a fellow Etsy employee

This is an old project, but by some miracle it's still working and I woke up this morning wanting to celebrate the things I love more.

This Inkplate e-ink screen shows Conway's Game of Life, seeded from tarpits I have on the Internet. The tarpits are programs on my computer that superficially look like insecure Telnet and Remote Desktop services, but actually exist to respond super slowly and make bots scanning the Internet 'get stuck'.

When a bot connects to the tarpit, the data it sends gets squished into a 5x5 grid and 'stamped' onto a Game of Life board. Data from a bot at the IP address 1.1.x.x will get stamped on the top left corner, data from a bot at 254.254.x.x will get stamped on the bottom right corner.

Conway's Game of Life, a set of simple rules that govern whether cells should turn on or off, updates the display once per second. The result is that bot attacks end up appearing as distinct 'creatures', that get bigger and more angry looking over time (as their centre is updated with new data). After the attack finishes, the 'creature' eventually burns itself out.

Despite that description, it's a really chill piece of art that doesn't draw too much attention but I can happily watch for a long time.

Credit for the idea goes to @_mattata, I had been wanting to make a real-life version of XKCD #350 for years before seeing his Botnet Fishbowl project.

#projects #inkplate #esp32 #eink #infosec #tarpit

This last week on the internet has really felt like going back fifteen years, and I mean that in the most positive way possible

The web app icon for Mastodon doesn't look great in the macOS dock, so I made some replacement icons based on the original artwork!!AupbcwNRole8gvV-1n

How to use: Command-click on the Mastodon web app in the dock to show it in the Finder, Command + I to open App Info, then drag one of the downloaded PNGs onto the icon at the top left.

#mac #macos #apple


Today I learned about "The Wikipedia Library Card". If you've been a WP editor for >6 months, have made >500 edits, at least 10 edits in the last month, and are not blocked for being a jerk, you can access a *ton* of paywalled content for free.

ScienceDirect, AAAS, The BMJ, both APAs, EBSCO, Springer, Nature, Wiley, and many more.

All those hours in 2005 spent editing sci-fi book articles finally paying off!

doing the same thing twice and expecting a different result is the definition of mutable state

NEW § Tim and Keyur continue their experience of using the cloud to scale Etsy with the journeys of two teams: observability and ML infrastructure.

Last of my #projects (for now): Spelling Beat (

Some friends and I play the NYT Spelling Bee daily on our own until we get Genius and then share answers to get Queen Bee. I made this not because I wanted to cheat (you can just view source if you want to do that), but I thought it would be fun.

It's a static JS app, and I actually got permission from to use the official word list. One tricky thing here is that not all valid words... (cont)

How to migrate from one Mastodon server to another without losing followers:

1. Sign up on new server
2. On NEW server: Go to Account -> Moving FROM another account
3. Enter old account's handle
4. On OLD server: Go to Account -> Moving TO another account
5. Enter new account's handle and submit


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Mastodon server for friends and family. Check your spam folder for emails - Adit