Ted didn't invent what kept his kitchen light on.

Asking him meant admitting I didn't actually know. After every dollar I'd spent, that was the hard part. But night after night, watching his kitchen window did more to change my mind than any of my own gear had.

What he explained to me that afternoon at the mailboxes wasn't complicated: which batteries to group, in what order, and how to wire them. No new device. No new source of electricity. He had simply found the sequence years before the rest of us knew to look for it.