That assumes that the 3.5 billion people alive on 11/11/1967 are still alive today, which is not the case. The number of people born before 11/11/1967 and still

That assumes that the 3.5 billion people alive on 11/11/1967 are still alive today, which is not the case. The number of people born before 11/11/1967 and still alive today would be quite a bit less than 3.5 billion, and the number of people born after that date and still alive today quite a bit more.