In my experience, Eureka moments are really Eureka weeks or months or years. When you say “aha!”, it’s a culmination of thoughts and experiences. You have finally had the attention span to untangle and organize those thoughts in your brain.
Therefore, the aha moment isn’t that moment in which you came to the conclusion you came to it’s every thread that you learned over the course of your life. It’s conversations, it’s experiences, it’s reading and learning. That big aha is a series of little aha’s that you didn’t notice along the way.