Figure 1.

The unbridled exponential increase in one’s ancestors is illustrated from the 1st generation to the 50th generation from the present. Years from the present of pertinent generations are also indicated for our own species. Inserted at the bottom is the genealogical tree back to four generations of a product of the first-cousin mating. Ancestral siblings are shown as two thick vertical solid bars, whereas ancestors lost as a consequence are indicated by dotted lines.