Bratwurst Boy wrote:
Do you mean that? Lot's of "hypothetical" I think....
Of course there is a lot hypothetical material. The issue though, I thought, were the prehisotric times. It;s easy to say now that Germans come from (roughly) what is now occupied by Germanic peoples.
Linguistics is one aspect only, but while the Genetics of PIE is largely unknown (understandably, if we mean a hypothetical group of people) the commonalities of some genetic traits is strikingly similar, and unusually high, at times as high as 80%.
Linguistics in itslef is only a part of the story. In this regards semantics comes to play. Who do we regard a representative of a given nation? A person who has been its part for generations? How many generations? A person who was born in an area? One who accepted and took as his own a culture, language and customs?
This is signifficant, especially when you consider that there has been a lot of mixing in the last few millenia due to migrations, and often the invader imposed the language upon those invaded (see England, Prussia, Nort and South America).