CRDTs every so often have weird merge issues.

They're eventually consistent… but not necessarily to a semantically coherent state.

These little errors are often not a big deal on their own.^[le]

If a human is watching, they can correct the error before it does much damage.

But if no human is watching, they tend to accrete on top of each other.

Each error has a super-linear rate of oddities.

Systems without humans in the loop on a continuous basis (e.g. background logs processes) are not viable with CRDTs or other systems that tend to accumulate errors at continuous rates.