Certificate validation don't involve UX friction. I need this friction to be justified, and it the sync is very slow new comers will never bother to be a full n

Certificate validation don't involve UX friction. I need this friction to be justified, and it the sync is very slow new comers will never bother to be a full node. Give people instant sync, and they won't consider light wallets anymore = greater overall security, ready for any censorship.