It's weird to think that today, multilingual speakers might outnumber those who only speak one language.
I don't find that weird at all. Outside of the United States, it's actually quite common for someone to speak two or more languages.
Maybe it's because I'm an American where most people I know only really speak English fluently. Most Europeans can speak more lanuages than their mother tongue.
I'm an American as well, and I admit I'm only fluent in English, but can at least order food in a restaurant in a few others.
It's kind of worrying that more Americans can't speak more than one language fluently when you consider globalization and the increasing cultural openness of the world.
I think it depends on what part of the country you live in.  Where I live outside of Baltimore, a surprisingly large number of people speak Asian or Middle Eastern languages. 
People who speak multiple languages might have a better perspective on philosophical questions. Some philosophers like Kant believed that language originates from logical thought, while others like Rousseau believe it comes from emotion.
I can see about language coming from thought, especially since thoughts are usually done in a language.