Now I will return to my laboratory work done in the field of biology, fundamental biology of aging, and pursue this question of the replicometer, which I proposed as a name for some unknown mechanism that hypothetically caused cells to have the memory that they did, and to explain why there was a rather narrow window in respect to the number of population doublings that the cells underwent when derived from many different foetal donors. The next event that occurred in my laboratory, it occurred early on at Stanford, when one of my students, by the name of Woodring Wright, W-R-I-G-H-T – Woody, as he was known to all of us – had his... was working for his MD at Stanford, and also was pursuing a Ph.D. simultaneously. Stanford at the time had a program that permitted that possibility. Woody decided to do his Ph.D. dissertation in my laboratory. We welcomed him, and it turned out he was a very bright fellow, and he became familiar – of course, he already knew about much of my work – but he became familiar with my wish to pursue the question of the location of this counting mechanism. And Woody did an experiment that provided considerable insight into this question.