A current example is the entry on Hurricane Katrina. It's odd to read an encyclopedia entry that starts "Hurricane Katrina, now downgraded to a tropical storm" (italics mine). Can you imagine telling the folks creating the Encyclopedia Britannica in the 1700s that in the future, the encyclopedia could contain reference information that's more or less realtime? They wouldn't have been able to comprehend the idea.
This reminds me of Arthur C. Clarke's oft-quoted maxim:
Any sufficiently advanced technology is indistinguishable from magic
I'm 28 at the time of this writing. When I try to imagine what the world might look like in 27 years, when my son is my current age, and I give up, because there will be technologies then that we can't even imagine now.
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