Instructional videos are now almost as easy as instructional text

Sure they are. Digital video is cheap, often built right into your phone. YouTube is out there. And startups such as 5min and Jabbits aim to create specialized platforms for short instructional videos and video Q&A, respectively. Just as the read/write web allowed everyone to share their text instructions, these changes will allow everyone to share video instructions -- probably a beneficial move, since people have different learning styles.