Bright silver light thought to be aircraft reflection on a clear day for a few seconds instantly disappeared saw no craft or object

I was driving in Richmond, KY headed to Lake Reba when I saw an extremely bright light- what seemed to be a reflection off of an aircraft-in a very clear blue sky. I thought it may have been the reflection of a jet plane, but as I watched it abruptly disappeared. I instantly tried to see what kind of plane it was but there was nothing. It's like it blinked out. I pay attention to detail. I worked as a construction estimator working on blueprints for 12 years and at the railroad in and out of the tower so I had to always be aware.