A lot of amazing inventions, ideas, and technologies came about in the 21st century, but we want to know: Which tech invention do you think was the most important during this time?

Tell us which tech invention of the 21st century is the most important so far in the comments. Was it a small gadget? Or was it perhaps an elaborate technology? Was it something significant to you personally or something that changed society as a whole?


Image by Yuganov Konstantin/ShutterStock

Eureka is our week-long meditation on the wonders of invention, inventors and genius.

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