Perspicacious. Rocky Frisco used this word in a conversation many moons ago during which he gave me a silver half dollar for my birthday. I don’t recall the context. I looked it up later. I hope you will too. I hope his deployment of perspicacious was directed at me. I believe Rocky always carried silver half dollars in his pocket for giving when an occasion arose. He is one of many talented musicians I met when I moved to Tulsa and joined the music scene. One of many now missing in action.