Why aren't the different Arabic dialects considered different languages?

I understand that some of the dialects are fairly similar, yet some are completely incomprehensible to each other. Why aren't they just separate (perhaps mutually intelligible) languages instead?

submitted by /u/Jack20010319
[link] [comments]

from வணக்கம் | Languagelearning https://ift.tt/2H3ITab
via Learn Online English Speaking