Quick question for you - did the Proto-Indo-European culture spread out further than, or lesser than, the Greek culture?
Because that difference in expansion, distance, and interaction with other cultures might explain the differences you're incredulous about.
Given Punjabi and Irish Gaelic are both descended from PIE, as is _Greek_ I'm going to say that 4K is plenty. The fact that Greek didn't change so much after Mycenean Greek was first attested in 2K BC doesn't say as much about PIE as it does about the Greeks deciding they liked where they were.
Also, _how_ different is Greek to other languages? Given it's a PIE language also.
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Quick question for you - did the Proto-Indo-European culture spread out further than, or lesser than, the Greek culture?
Because that difference in expansion, distance, and interaction with other cultures might explain the differences you're incredulous about.
Given Punjabi and Irish Gaelic are both descended from PIE, as is _Greek_ I'm going to say that 4K is plenty. The fact that Greek didn't change so much after Mycenean Greek was first attested in 2K BC doesn't say as much about PIE as it does about the Greeks deciding they liked where they were.
Also, _how_ different is Greek to other languages? Given it's a PIE language also.