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White board video is usually short; most clock in at around 60 to 90 seconds in duration. That timing might seem awfully quick, but it’s actually just about perfect for the attention span of most people nowadays. Are you ready for a short history lesson?

Human beings have always had short attention spans, and, according to some scientists, that’s exactly as it should be. The theory is that a short attention span is an evolutionary advantage that gives humans the ability to both focus on a complicated task (building a fire) and also continually check in with and assess their surroundings (“Is the sun going down?”, “Was that thunder?”, “Are there any signs of a predator nearby?”). In evolutionary terms, our short attention spans are likely a big part of why human beings are the most successful species to ever inhabit the earth. The short attention span was the secret weapon that allowed us to survive and thrive.

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