Rabbit Holes a commonplace book,kept in the open
¶ 453 · a public commonplace book

Hi, I’m Bhuvan.This is my commonplace book.

It is a linkblog and digital garden for the weird, wonderful, and unexpectedly useful things I find on the internet. Read what I have kept below, wander through a subject, or visit Small Web, my directory of independent blogs.

Recently kept
September 2026
453 Link

How to value companies when you're a cokehead

source Financial Times

Now, TAM is de rigueur in any venture capitalist’s slide deck or IPO prospectus. Its usefulness is another matter. Uber touted a $12.3tn TAM in its 2019 listing; its annual revenue today is less than $60bn. WeWork’s $3tn addressable market of office properties didn’t save it from bankruptcy. But for a company like Anthropic, TAM is as good a place as anywhere to start. Investors aren’t groping totally in the dark, thanks to…

keep reading — 1 min ↗
AIAnthropic 4 threads →
450 Musing

Notes from messing around with vision, text, and audio models

The bulk of my vibe-coding experiments over the last few months have involved audio and video, or rather audio and vision, and I’ve been experimenting pretty heavily with multimodal models. So this is just a small guide based on what I’ve used. If you have some project where you need vision capabilities for text…

keep reading — 14 min ↗
Multimodal modelsAudio modelsLarge language models 4 threads →
449 Link

Why Japan matters

source IMF

The Japanese government bond market is among the world’s largest and deepest and remains an important safe haven for investors when conditions deteriorate. Combined with Japan’s open capital account, sizable international investments, and growing foreign participation—including in mutual funds and hedge funds—this makes for strong global financial ties. As a result, developments in the Japanese debt market can affect other…

keep reading — 1 min ↗
Japan 4 threads →
447 Link

Hidden chokepoints

source BBC

One of India's biggest digital vulnerabilities sits on a six-kilometre stretch of Mumbai's Arabian Sea coast. Around Versova, a densely populated neighbourhood on the city's northwest, at least 13 of ++India's 18 intercontinental submarine cables++ come ashore within six kilometres of one another. Together they carry as much as 95% of India's international bandwidth to Europe, Africa and West Asia. "This network faces a…

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InternetUndersea cables 4 threads →
Pulled from the stacks pull another from the archive →

One older leaf, brought back into the light.

067 Musing

Tools for thinking

"Extraordinary claims require extraordinary evidence" (sometimes shortened to ECREE),\[1\] also known as the Sagan standard, is an aphorism popularized by science communicator Carl Sagan. He used the phrase in his 1979 book Broca's Brain and the 1980 television program Cosmos. It has been described as fundamental to the scientific method and is regarded as encapsulating the basic principles of scientific skepticism. The…

keep reading — 2 min ↗
Tools for thinkingLogic 4 threads →
453 folios · last kept 21 September Open the full archive →