I'd like to see the price of a single memo or any acttion on Memo down to 1 sat. Is it possible? What do we need to achieve that? Better software of protocol upgrade?
It may not confirm. At the time of this writing, the fee is estimated to be 1.276 sat/B (per BU node). The size of your message was 377 B. 377*1.276=481 sat. Nothing to do with memo