The culprit was time perception

Now, I want you think about how much time passed between the moment I said, and you began hopping on one foot to the moment I said, Take a guess.I'm looking for an exact number of seconds or minutes.Now, with a pen and paper, write that number down.All done?The exact time was actually 26 seconds.Did you overestimate?Chances are that you did.So, what was the culprit?The culprit was time perception.