Based on genetic distances, molecular evolution rates established by the hypothesis of molecular clock can be used to deduce the origin or divergence time of different organism taxa.

The other way to think about it is divergence is the source rate, it is the amount of fluid that is being inserted into the system, that is being pumped into the system per unit time per unit area.

And the second piece of information that we got was from the divergence theorem, and that was the one I spent time trying to explain.