Cassandra is only carbon now on Nostr: uncertainty being epistemic: you don't know the truth about something, but there is a ...

uncertainty being epistemic: you don't know the truth about something, but there is a definite answer that you could in principle learn

uncertainty being ontic: the actual underlying truth is itself uncertain.

Pretty much all uncertainty you will run into in your own personal life is of the first kind. There is an answer you could in principle know, but for whatever reason don't currently know.