Does Twine 2.0 have an upper character limit?

I know variations of this question have been asked but I feel like it's never really gotten a proper response. What's the final limit for a Twine 2 project, wherever this limit might come into play — be it the editor, the number of disparate passages, the final HTML output for distribution, etc. If there's not a specific one, at what point do extremely large stories/projects start exhibiting unstable behaviour?

Trying to gauge how much room I have for something I'm working on.