A couple of years ago, I started using Twitter. And one of the things that really charmed（ 吸引） me about Twitter is that people would wake up in the morning and they would say, "Good morning." I'm a Canadian, so I like that politeness. I'm also a giant（巨人的） nerd, so I wrote a computer program that would record 24 hours of everybody on Twitter saying good morning. Then I asked myself my favorite question. What would that look like?

  As it turns out, I think it would look something like this. We see this wave of people saying good morning across the world as they wake up. Now, the green people, these are people that wake up at around 8 o'clock in the morning. Who wakes up at 8 o'clock? Or says good morning at 8. And then the orange people, they say good morning at around 9.

  And then the red people, they say good morning around 10. More 10s than 8s. And actually, if you look at this map, we can learn a little bit about how people wake up in different parts of the world. People on the West Coast, for example, they wake up a little bit later than those people on the East Coast. But that's not all that people say on Twitter, right? We also get these really important tweets.

  Like（喜欢） I just landed in Orlando, plain（清楚的） sign, plain（清楚的） sign. Or I just landed in Texas（德克萨斯州（美国州名））, exclamation（ 惊叹词） point. Or I just landed in Honduras. They go on and on and on and on. All these people. So on the outside, these people are just telling（ 告诉） us something about how they're traveling.

  But we know the truth（真理）, don't we? These people are show offs. They're showing off that they're in Cape（[地理] 海角） Town and I'm not. So I thought how can we take this vanity（空虚） and turn it into utility（实用）? So using a similar approach（靠近） that I did with good morning, I mapped（映射） all those people's trips because I know where they're landing.