… to be kept constant and stable throughout the needed time period, which is not the case. See our books Origins of Life and Improbable Planet for details and documentation.
In the case of biological evolution, there are at least several instances in the fossil record, for example, the Avalon and Cambrian explosions, where the observed macroevolutionary changes occur without any measurable passage of time and later, after the passage of much time, the microevolutionary changes occur. In these instances, the diversification of phyla occurs first and simultaneously. Later, over a long time period, the diversification of species and genera occurs …