Dumb tools shouldn't become smart.
When you use a dumb tool you expect it not to spy on you.
When you use a smart tool, you expect it might develop a model of you.
When it switches from dumb to smart, it becomes a violation of your expectation, a betrayal.
"I thought you didn't even have a brain, so you couldn't spy on me.
Now I see that you were spying on me the entire time!"
Things that you did in the system because it was dumb now feel retroactively dangerous in a moment.
It's the uncanny moment when you realize the walls literally have ears.
This is one reason you won't be able to retrofit agentic workflow onto previously dumb tools like Google Docs, Notion, and Airtable.