Sorry you failed to find humor in my reply. Then again, I find humor just about anywhere I look. I'm just like that. I'm well used to not everyone "getting" me. 
Yep, I've been a Community Professional/MVP/Whatever you wanna cal it for many years. I take it you felt your question had a definte answer and one of us here would just advise what the limitation was and I didn't reply in a manner you expected. Sorry. If a limit exists, we haven't yet discovered it.
I'm sure there have to be limitations. I mean, ALL software has limitations. For example, the older versions of Captivate had a "rule of thumb" guideline that was never openly acknowledged or stated by the dev team. That guideline was 50-65 slides. But those limits were alleviated when Adobe decided to rewrite Captivate using the OWL interface.
I'm no eLearning guru, but I've heard many others state that folks begin to lose interest or attention if modules are very long. So I'm curious about your concern about the limit. Are you experiencing issues or was the question more along the lines of: Gee, I'm wondering if I can do this with Captivate. And if you had asked the question in those terms, you would have likely received a different response.
Cheers... Rick 