9

Here are some ideas, which when taken together would give a good idea whether a language has a strong functional speech community. If a conlang has thousands of fluent first language (L1) speakers, that would be clear evidence, but even Esperanto, the most spoken conlang, has only up to 1000 Esperanto speaking families. Ideally those L1 speakers are able to ...


8

It is not possible to speak Tolkien's Elvish Languages. This may confuse some people, considering how much nonsense there is online for "how to speak Tolkien's Elvish" (there's even a wikihow article about it). But according to the Elvish Linguistic Fellowship, an organization dedicated to the study of Tolkien's invented languages, even Quenya and Sindarin ...


6

I'm as pro-Occidental as they come (it's the only auxiliary language that I support) but I came across that article in 1928 during my typing up the archives of Cosmoglotta and that article is nothing more than Ric Berger wishful thinking. He unfortunately spent just as much time attacking Ido as he did supporting Occidental, and kept on proclaiming it to be ...


4

I'd lower the criteria significantly and already admit that a conlang has a speech community when it is used on some occasions for real-time face-to-face communications. By these criteria, even Klingon has a speech community. Whether a speech community is functional or not is probably difficult to decide, I'd go for a kind of temporal criterion like having ...


4

Based off the audio file from this website, and the audio files from this website, we can infer that Toki Pona is a "fast" language. It uses 6 - 8 syllables / second, except with punctuation, where you delay for the same time as English. Some Youtube videos stick to the contrary, but their speed is slow to make it easier for nonexperienced Toki Pona ...


4

r/Ido has twenty times as many subscribers as r/Interlingue. While comparing reddit subscribers may not be the most scientific method, it's probably fair to assume this reflects their popularity in general. It's impossible to really know if most Ido-ists switched to Occidental back in the 1920s, but even if they did I think it's fair to say that later ...


3

According to Wikipedia, about 20 or 30 fluent speakers Another more interesting article, a bit more scholarly, mentions a wide variety of numbers per study.


2

There is some basic data at Ethnologue for Esperanto. The Font of All Knowledge lists some statistics for other invented languages (Hungarian & Russian census data). Not much, but a (small) start.


1

For any particular language maybe 1-2 to dozens. The best way to find out would be to collect as many writing samples as possible that have been posted to the internet. Pick some arbitrary cut off for what counts as "speaking" the language for length. When I did this for toki pona, there were maybe a few hundred people who could write at least a few ...


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