LLM's are directionally right and if their answer "fits" then I take it at face value.
I wrote a blog detailing the computational difference between "generation" and "verification" and why it matters for LLM's: https://simianwords.bearblog.dev/the-generation-vs-verificat...
As an example: I asked the LLM "synonym for "provides" that also means "places" on you" and it gave me 5 answers and I immediately knew the right one was "confers". How? It just fits. Just like most things.