Searching the 📝Memo Feed of any 📝MythOS user is simple, albeit hidden. All anyone needs to do is take an author's 📝memo URL (e.g. https://mythos.one/brianswichkow/069fab), remove the appended code (e.g. https://mythos.one/brianswichkow), and reload the page. This will show that user's feed where — at the top of the page — there is a search modal.
The ability to search the memo feed was deliberately hidden in 2017 when Mythos first went live to assess how users felt about the visibility of their writings.