Will there be Weed in Space?

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Centuries from now Earthlings will be out past our solar system, it's inevitable.  We'll be interacting with humanoid and other life forms. 
It's likely that interaction will be through commerce. I predict the product that will put Earth on the stellar map is not oil or some crude rock but. . . Weed.

I bet Cannabis, Sativa or Indica, ends up being the unique product we have here on Earth that you can’t get on any other planet, once we start traveling in space.  
Happy Sunday 
Posted by Kay Ebeling