Millisats (and smaller) solves the deflation problem inherent in Bitcoin (assuming for the sake of argument there is a problem at all).

Gold cannot divide the way Bitcoin does—at a certain size, it’s authenticity cannot be easily confirmed.

Bitcoin fixes this nostr:note1fyjkfrycyylf6ce7ur6wfyhlrkdg0zqceejgjcudgwhzarfz2mjsjgzcy3