From Wiki: "Survivorship bias or survival bias is the logical error of concentrating on the people or things that made it past some selection process and overl

From Wiki: "Survivorship bias or survival bias is the logical error of concentrating on the people or things that made it past some selection process and overlooking those that did not, typically because of their lack of visibility" Can you point me to an example that is being overlooked? The probabilities of a successful terrorist attack on a nuclear plant are very thin given the extreme security measures around them, and that's a fact. Thinking that, despite a basic probability being extremely small, "it's still possible", and thus assigning the event a larger probability than it naturally has, now that's an error.