Doogie Howser has been jokingly referred to as the world's first blogger. But the kid doctor's quasi-poignant, ellipsis-laden insights more closely resemble Twitter updates. Can you tell the difference between something I excerpted from Doogie Howser's famous journal and something I found on Twitter? (Note: I deleted all ellipses.)

When you're done, either start following mental_floss on Twitter or go watch all four seasons of Doogie Howser, M.D. for free on Hulu.