What I found interesting in the video was that it reminded me that when you walk in wet cement, you leave a footprint and it can never be erased. Similarly when you go online, your actions never disappear. In the first video they are basically talking about how you can leave a mark and that anyone can see it and it never disappears, it can be copied. The second video is basically talking about how your online history gets created in modern times and how everything you do, can be added to your online history. I prefer the first video because it helps me learn how you when you do anything online, it leaves a mark and that anyone can see it at anytime and anywhere. Also they can copy it and send it to other people.