the Stanford group identified just three factors that were predictive of future blastocyst formation: the duration of time that it takes the first cell to divide for the first time; the time between that first division and the second; and the synchronicity of the second and third mitosis. By relying on this trio of parameters, the odds of predicting blastocyst formation (and, subsequently, the chance of viable implantation) increased to 93 percent. Imagine IVF performed with a single embryo—no high-risk pregnancies with twins and triplets—and with a 90 percent success rate.
