No, precision or error can measured in absolute or relative terms. In either case, the unit is irrelevant, you could say +/- "0.000001 big bang timespan." The p

No, precision or error can measured in absolute or relative terms. In either case, the unit is irrelevant, you could say +/- "0.000001 big bang timespan." The point is that in the realm of human experience, that tracking error is quite big.