nostr:npub1s05p3ha7en49dv8429tkk07nnfa9pcwczkf5x5qrdraqshxdje9sq6eyhe if all that matters is bitcoin staying decentralized and secure how do we ensure that happens individually. I understand that many people buy bitcoin on exchanges and keep them there. That is something we need people to understand. Not your keys not your coins, but other than that and running a full node is there anything else individuals can do?