Hi @bill54321 - You are not dumb! Sometimes it is easy for a discussion to be misinterpreted. I was just commenting on the movie poster in the post that you mentioned you didn't get it. If you are not having any problems or pain with your knees then it is not likely that you need a knee ablation. Here is some information that explains a knee ablation.

Could Radiofrequency Ablation Provide Relief for Painful Osteoarthritis in Your Knees?
--https://health.clevelandclinic.org/could-radiofrequency-ablation-provide-relief-for-painful-osteoarthritis-in-your-knees/

Sorry if I added some confusion with my post.