Okay, I get what you mean. Also, I do take very validation seriously, given that my ggggrandma is a living, validated supercentenarian by the actual proper organization. But there's a difference between skepticism, and being close to conspiracy theory level skepticism like "all supercentenarians are frauds" or "the documents were forged"

On a scale of "supercentenarians exist to no supercentenarians exist" I believe you and I would both agree that supercentenarians exist. Unfortunately, there is no way to biologically test age to exact values, which is why the current validation process is in place.

But I do believe that biological testing would let even more supercentenarians be validated. As many people in the world (specifically China, Africa, South America) lack the documents to be validated. That's one of the main reasons why most supercentenarians are from N.A, Japan, and Europe