Simon Willison’s Weblog

30th September 2025

None

TIL Error 153 Video player configuration error on YouTube embeds — I recently noticed that almost every YouTube video on [my blog](https://simonwillison.net/) was displaying the same mysterious error message:

Posted 30th September 2025 at 5:07 pm

Recent articles

The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026
Claude's new system prompt really doesn't want to reproduce song lyrics - 2nd September 2026

This is a beat by Simon Willison, posted on 30th September 2025.

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