Comment by vlovich123

The challenge of course is that if your write depends on a previous read, offline/online sync can easily in the wrong sync state once you come back online (in the general case). Even CRDTs are not immune from this - for example your offline document copy says step 1 is delete line 3 so you delete it but then you sync and step 1 was corrected to be “delete line 4” your deletion of line 3 is now incorrect even though the merged result is “valid”. We see this everyday in code development - they’re called merge conflicts.