Well, I think we don't need to know every language in the world, but we can understand the new technologies and languages in the future, we may have a robots.
Hmm ... I think we do not know all the languages in the world, but we were able to understand the language of modern technology in the future we could have robots as friends.
Well... I think we don't need to know every language in the world but we can understand the language by modern technology, and we may have เละในอนาคต robot friend.