[kevinjahns]

I know that it is hard to comprehend why modern CRDT implementations are fast. But the data confirms that they work great. OT seems to be much simpler, but there are real advantages in using CRDTs. The performance problems have been solved through an efficient representation of the CRDT model.

The gist of the below [1] read is that it is impossible for a human to create a document that Yjs can't handle (even in the worst case scenario). But yes, it handles real-world scenarios particularily well.

The concept of "hidden classes" is super old. It has first been implemented in a fork of smalltalk and then became foundational concept of runtime engines for scripting languages. It is implemented in V8, python, ruby, spidermonkey, ..

Yjs does not assume a "real-world scenario" and it is not optimized for any specific runtime engine. It runs fast in any browser. The benchmarks confirm this. [2]

Yjs is being used in practice by several companies (eg Nimbus Notes with >3 million users) for quite some time now. I'm not aware of any performance problems.

[1]: https://blog.kevinjahns.de/are-crdts-suitable-for-shared-edi... [2]: https://github.com/dmonad/crdt-benchmarks