You’d be surprised; it depends on the scope of the last write wins register. If you do it granularly attribute by attribute, last write wins is fine for mostly-

You’d be surprised; it depends on the scope of the last write wins register. If you do it granularly attribute by attribute, last write wins is fine for mostly-online mostly-realtime collaborative apps. The exception is (rich) text where you really want CRDT/OT/similar intention preserving merges of concurrent edits.