If you live near a coast in the US, you've probably been biting your nails as Irma was upgraded from a tropical storm to a hurricane, and the category numbers climbed. But what do the categories mean, exactly?
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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.