I think the concept of a serious or unserious person has lingered in my mind because I’m at the perfect age to notice it. I’m 29 now, so I exist in this weird purgatory where some people my age are married with kids, and others are in the same position they were in when we left school 11 years ago. At 22, the discrepancy between the people that consistently work hard, and those that don’t is pretty small. Not enough time has passed for the rewards of good decision making to pay off. Now at 29, the returns are compounding, and you can see that some are changing gears, and leaving the rest of the pack behind. These people, are serious people.