Which English and whose English?

https://www.facebook.com/TeachingEnglish.BritishCouncil/photos/a.402460659768827.110296.117741954907367/1969812089700335/?type=3&theater

David Crystal - Will English Always Be the Global Language?

In a thousand years’ time, will English still be a global language? 
David Crystal’s wry answer is: 'We could all be speaking Martian by then, if they land and take over.' 
– Watch the video and find out what else this world renowned linguist has to say about the future of the English language. Available at:


https://www.youtube.com/watch?v=5Kvs8SxN8mc