This is a practice round with Ken Jennings and Brad Rutter
posted by Stonebreaker![Ranked #57 - 17164 votes - 390 star points](https://videosift.com/cdm/stars/00250.png)
This playlist is meant to include videos that follow the human understanding of the nature of things and the world through history.
This is a practice round with Ken Jennings and Brad Rutter
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