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The output of the previous nano-electronic era might be considered the MEMs accelerometers and rate sensors packed into most smartphones, DLP micro mirrors, etc....

That would be now. The average person owns devices containing billions of components that are tens of nanometers in scale of smaller.

>Did I just miss the previous nano-electronic era?!

You probably made that post using electronic components less than 30nm wide.

I would assume they mean on era containing nano-electronic devices where the previous era did not contain nano-electronic devices.