I was too young to even know what was going on, but lived within walking distance of Sequoyah, which was approaching initial startup. I had just started elementary school, and recall my parents talking about iodine tablets being distributed ahead of the Sequoyah startup, but they didn't seem overly concerned. Several decades later, I found myself doing the thermal analysis for the Sequoyah and remaining TMI reactors.
My day in, day out work was along side engineers who were about as deeply involved in all that as anyone, some thirty years prior. Two things that stand out in our discussions were the limited ability to get information in and out of the control room via telephone, and the inadequate training of the reactor operators.
TMI was rightfully an industry changing event.
I've been out of the industry a bit, and am currently teaching. One of the project I have my students do is a nuclear fuel rod analysis, and the thermal effects of coolant flow disruption. I know they don't appreciate the relevance of the assignment, because neither did I when I was sitting in their chairs. However, I believe they will appreciate this work in the future.