User blog comment:LurkerLordB/Real-Life People born after a POD V2/@comment-4621372-20120816054929

This of course doesn't factor in the actual chance of any two people meeting? A lot of such meeting are based on chance, which would also have to be redone. at least halve all those cchances, if not quarter or lower. Not to mention which, you siad that after 6 generations, there are around 77,000 people who would be the same. There are maybe 500 people born in the last 5 centuries who have made a big enough impact in life that a TL would mention them. In that time, counting people still alive today, there have been at least 15 billion people born- mostly in the last 150 years. so, that is 500/15,000,000,000 x 77,000, or a paltry 0.00256...

In other words, just 0.00256 people would be alive in the 6th generation who made a big impact- and thuis it is still exceptionally implausible to use them.