We used to move freely…

Just a thought: for most of our history, human beings have moved freely about this planet.  

We traded, visited and resettled without any serious restrictions. Doing this diversified us and shared ideas widely – it developed our species to the point where I’m able to communicate this thought with hundreds of you on a tiny wireless device in my hands.  

We’re now stifling free movement to a ridiculous degree. How will that change our ability to develop, grow, innovate and invent?

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