In the World of the High Tech Redneck, the Graybeard is the old guy who earned his gray by making all the mistakes, and then tries to keep the young 'uns from repeating them. Silicon Graybeard is my term for an old hardware engineer; a circuit designer. Here are mental droppings from a newly retired radio engineer running from tech news to economics; from firearms to the world at large; from radio to home machine shops and making all kinds of stuff.
Put the better part of four years of your life into it, and never even get to see one, touch one, or sit inside one. But be a reporter for a tech magazine and you get to take the yoke during a test flight... Sounds like I made a wrong career choice somewhere along the line.