h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

I was not aware that Brythonic came from Goedelic. In practical terms it seems odd that the language should spread from Europe to Ireland and become the established language without ever touching Britain. It also seems odd in the light that Brythonic speakers near (what is now called) the English Channel could supposedly communicate with those living on the other side since the languages were so similar.
I thought that Celtic spread from the continent to all the British Isles at roughly the same time.



Also, although it is the accepted version that Breton was planted in NW (what is now called) France by the British, many people think that in fact the people of Brittany were still speaking what was left of Celtic on the continent and that the Brythonic-speaking incomers merely bolstered what was already there (and perhaps altered it a bit). Who knows?