Excellent!Perhaps you remember this scene from Bill & Ted’s Excellent Adventure:

Bill: The truth is, Wyld Stallyns will never be a super band until we have Eddie Van Halen on guitar.

Ted: Yes, Bill. But I do not believe we will get Eddie Van Halen until we have a triumphant video.

Bill: Ted, it’s pointless to have a triumphant video before we even have decent instruments.

Ted: Well how can we have decent instruments if we don’t really even know how to play?

Bill: That is why we need Eddie Van Halen.

Ted: And that is why we need a triumphant video.

Both: Excellent! *air guitar*

At first look, this scene might not seem relevant to a discussion on the origin of life. But when you’re trying to explain mutually interdependent systems to a 16-year-old, you take what you can get. (more…)

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