Are There Any False Positives Out There?

An Australian biologist looked at 4,000 faces from the US Anthro-Pometrics Survey database. She found that it's like a one in a trillion chance that there are two people who are identical across eight measures of your face. The chances are really low unless we just keep going population-wise. And even with the number of people out today, I frankly don't think it's that low of a chance.