There are 3 circumstances in which I will 5 star a video:
1. It provokes an uncontrollable emotional response (such as laughter or tears.
2. It is so good I want to watch it more than once.
3. Pure evil.
While I am excited that people are trying to reclaim knowledge of lost technology in defiance of the culture need to be as stupid as possible, they probably should have started by rediscovering the screwdriver.