You are certainly right, it must be clear what a "fluent" speaker is. But it feels like Lawrence did not make that clear in his first interview when he made that statement. In my opinion, a fluent speaker does not mean to be perfect or know each word from the book. I regard fluent in a way that one can have a basic conversation about general topics, and one is capable of understanding an explanation of an unknown word. Talking more technical (only for Klingon): Basics of grammar should be understood by 80% and the knowledge of vocabulary should be above 60%, excluding specialized vocabulary. (most fluent speakers of English probably have never heard of puffins, so why should a Klingon speaker know the definition of a neSngech?) Although it's interesting, I think that for the common knowledge of "the world", it is not important to make a difference between "speaking fluency" and "writing fluency". After all, it's very difficult to test that. I have encountered people with whom I could communicate in Klingon in a real life speed written chat, but speaking in person was very difficult. Still I see those as fluent speakers. Talking numbers: The Facebook group tlhIngan Hol jatlhwI'pu' has almost 100 members. I suppose most of them do speak Klingon at least a little. Learn Klingon has 3,000 members, but those are learners. Are there no other ways to find an official number of Klingon speakers? -- Lieven L. Litaer aka the "Klingon Teacher from Germany" https://tlhInganHol.com https://klingon.wiki/En/AliceInWonderland