When people get older they talk less about video games and become more interested in politics, he found.
Wolfram also looked at how people's interests change. "We see that for young ages, the ages of friends are very closely correlated with the age of the person themselves, but as they get older it spreads out a bit," Wolfram said. The ages of Facebook users' friends, for example, correlate to the users themselves. "There are a lot of interesting things one can do, sort of mining this social universe of Facebook," Wolfram said. It seems that humans behave in aggregate a bit like molecules with certain reaction rates for entering into relationships and marrying, according to Wolfram. It is interesting how similar the process from being single to getting married looks to a physical process like a chemical reaction, Wolfram said. People start marrying around the age of 20, and at 40 about 75 percent of Facebook users state they are married, according to Wolfram's data. The line starts to descend in the late twenties when about 25 percent of people say they are in a relationship. People who say they are in a relationship are mostly in their twenties. Young people are often single but the amount of people saying that they are single steadily declines until it becomes stable at age 40, his data showed.
"It starts off with most people being single and then it ends up after a while that most people say they married," Wolfram said.
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