Energy Input: The Hidden Price of Progress

I love my computer. But I think that I will be using something simpler in the future. I love my digital watch, but I am looking into a wind up pocket watch. I have a radio alarm clock, but also a wind up one. Why?

Energy Input.

I can wind a windup clock with a very nominal amount of elbow grease. My clock radio requires an electrical grid that would be outside my ability to create without the infrastructure of civilization.

How much of your life depends on systems that require magic energy imported through means you neither understand or control?