It is the best version of fuzzy search I have ever seen: the ultimate "tip of my tongue" assistant. I can ask super vague things like "Hey, I remember seeing a tool that allows you to put actual code in your files to do codegen, what could it be?" and it instantly gives me a list of possible answers, including the thing I'm looking for: Cog.

I know that a whole bunch of people will respond with the exact set of words that will make it show up right away on Google, but that's not the point: I couldn't remember what language it used, or any other detail beyond what I wrote and that it had been shared on Hacker News at some point, and the first couple Google searches returned a million other similar but incorrect things. With an LLM I found it right away.