You probably know Elon Musk either for his big dream regarding establishing a Mars Colony in his lifetime (he's 49 years old as the time of writing), his success and vision with Tesla and/or his other ventures. Though if you're anything like me - you know him from the memes.
Now this man just did something big: Tweet two words. Doesn't sound like anything big, dind't probably even take him a minute to think of, open up his phone and tweeting that for the world to see.