I don't think that's what it says. It says the likelihood of those three options is equal. So that could be a one in a million chance of being Jack Ryan, a one

I don't think that's what it says. It says the likelihood of those three options is equal. So that could be a one in a million chance of being Jack Ryan, a one in a million chance of being Jack Sparrow, and a one in a million chance of being Jack the Ripper. Other options are not mentioned.