> "I don't know" is absolutely a state of acceptance.

Yes, it absolutely is acceptance that you don't know. It is belief in not knowing. But that's not what we were talking about. Context must be considered.

> Assent to a proposition or affirmation, or the acceptance of a fact...

Curious choice. The GCIDE is not among the usual 'authoritative' dictionaries, and for good reason. It takes its definitions from a publication written in 1913. It is not a modern dictionary. Unless you've invented a time machine... It is interesting from a licensing perspective, but little more.

Of course you are absolutely right that anyone can make up a random definition for a word on the spot. They can even publish it in a book if they so choose. But you know that wasn't what you were talking about when you brought up "definition" and you know that didn't change going forward. Context must be considered.

> The second way this argument is flawed is that dictionaries are descriptive tools, not prescriptive.

Hence the poking fun of your "By definition, any update of beliefs is changing one's mind." comment. It even prefaced with "_If_ we want to lean on definitions" to highlight that it could not be taken in a serious way. Did you not read the thread in full before landing here? Context must be considered.

I, for one, thought the discussion we were having was rather interesting. I have no idea why you thought anyone would want to read this blatantly obvious, horribly off-topic slop.