According to a study done by Microsoft, the average person's attention span these days is just eight seconds. I'm not sure when the study was done or any other details about it beyond that -- it was just the first thing that popped up when I googled "average person's attention span" and after I found that headline I got bored and clicked away. It had been eight seconds.
If you are one of those easily bored, TL;DR, "isn't there a YouTube video of this or something" types, then this is the column for you.