Okay, maybe I underestimated Dot a bit. I emailed someone to say I was unavailable on the specified date this week and had to cancel the meeting.

OpenAI Dot then proactively messaged me, informing me that I had apparently mixed up the dates because the person had wanted to meet me the week after next.

Two things are remarkable:

Dot independently monitored my email, detected the error, understood the context, and alerted me. This actually saved me from a lot of misunderstanding. A little "aha" moment. I'm currently in the US, which is why I have access to Dot. Of course, I won't have access once I'm back in Germany (and not using a VPN). But it's a really good use case!