This question comes a little late this week. Once again, I’m pulling from The World Question Center on Edge.org.

“What is the most important invention in the past two thousand years?”

I’d also like to know why you consider it the most important. I’ll answer after my readers have a chance.

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The “question mark” search barrage continues. I’m up to 290 searches for that term and about as many variants. The strangest search phrase in the past week was “question mark memory”.