3 ms·

I don't get it. Isn't precision always relative? Who cares how large the numbers sound in certain units?

• oh2aa 2y ago
  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.