A nice heuristic: treat cookies differently depending on whether you've browsed to their domain. Browser fingerprint tech is mature though. https://twitter.com/TheRegister/status/909787320907386881
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It's weird that GitHub shows time since the last commit, but not time since the first commit. It's a nice way of seeing how mature a project is.
I find it really interesting how some areas of tech are widely expected to improve radically (e.g. LLMs and smart home tech), others gradually (CPU speed, battery capacity) and others very slowly (e.g. compiler optimisations).
Predicting the future is hard.
Do any tech streamers try new software live? It'd be a really fun way of doing UX testing.