Tila Tequila

Is there a pocket knife that will never dull?

I’m just curious if such a pocket knife exists that will never rust no matter how much it is used? I’ve been reading about CV or High Carbon steel blades that take a very long time to dull, and ceramic knifes apparently take a lot longer to dull as well but I’ve never found anything that guarantees to never go dull. Any information would be greatly appreciated.
Thanks.