Had a very surprising ChatGPT experience: asked it to generate a quick summary of the WannaCry ransomware, and instead of referencing the person who stopped it by name, it simply put "(you)". When I asked it how it was able to identify that it was me, it citied its own message as something I'd said.

After pointing out I didn't say that, it did, ChatGPT replied that it was able to infer it by my account username and what it'd learned from my skillset across various chats. Not 100% sure if that's how it actually did it. Either way, pretty cool, but also a little bit scary.

It's pretty widely known that many tech companies, especially advertising ones build comprehensive profiles on their users, but it's rare that you get to talk to said profile and figure out what it knows about you.

We have a CI job to spot unwanted utf8 letters in #curl PRs as we have noticed that GitHub will gladly show the for example (identical) Cyrillic version of a letter next to the Latin version in a diff and it is yes, entirely impossible for a human to spot the diff. I mean the diff is shown, but the significance of it is not.

Changing just a single letter like that in a URL hostname opens up for a world of grief.