User blog comment:Saturn120/What if Karl Marx Was Never Born?/@comment-32656-20140512075716/@comment-4621372-20140514212330

Not true about the sperm cell. Many cells, of course, will not get there because they are diseased or suchlike, but among most of them, it's luck. But in any case, since even quantum effects could screw with DNA, chances are, the cell which became Adolf Hitler would not have gotten there.

We had this discussion in DD, as I recall ("we" generally, rather than "you and I").