Well, to answer this question whether or not the short trade was lost in this offspring, he conducted a second experiment. He said what if I take this f one generation and I made it with itself with another f one generation in the following manner? So let's suppose I conduct this experiment twice. I produce two of these f one offspring and I made them to produce the f two generation offspring. What exactly will I see? And let's suppose I do this 1000 times.