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The Oral B Black 7000 is a high-end electric toothbrush designed by Braun that retails for nearly $300 -- toothpaste not included. Boasting up to 48,800 rotations per minute (RPM), it promises to remove double the plaque of a manual toothbrush. But is it any better than a $20 electric toothbrush?

Predicting the future is near impossible -- but that doesn‘t stop us all from having a red hot go. Human beings have been predicting the future since the beginning of history and the results range from the hilarious to the downright uncanny.

One thing all future predictions have in common: they‘re rooted in our current understanding of how the world works. It‘s difficult to escape that mindset. We have no idea how technology will evolve, so our ideas are connected to the technology of today.

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The Oral B Black 7000 is a high-end electric toothbrush designed by Braun that retails for nearly $300 -- toothpaste not included. Boasting up to 48,800 rotations per minute (RPM), it promises to remove double the plaque of a manual toothbrush. But is it any better than a $20 electric toothbrush?