Patrick wants to know how Leo handled foreign countries where they spoke a different language. Leo says that in most places, people did speak English. Wherever they didn't, Leo used Google Now's Translate capability on his Motorola Moto X which worked quite well. People were intrigued about it, too. When they spoke back, that was a challenge because it doesn't help the other way. Leo says we're going to get there soon. Someday, we are going to have a universal translator that handles the job.
Leo also says that thanks to the Internet, English is rapidly becoming the language of the world.