Image 1 Caption: An illustration of cosmic history: i.e., the evolution of the observable universe from the hypothetical inflation era (cosmic time ∼ 10**(-36)--10**(-33) or 10**(-32) s) (which is very near the formal cosmic time zero (i.e., t=0)) to cosmic present = to the age of the observable universe = 13.797(23) Gyr (Planck 2018).