Dennis Venema sought to persuade his fellow Christians that genetic science had disproven the traditional idea of a “bottleneck” of two human ancestors.
Man-made railways can’t come close to the efficiency and flexibility of those at work inside your body right now.
The changes involved in adapting a generic mammalian template into a whale are certainly not all simple, independent, single-letter changes.
A bottleneck of two, or a first pair at our origin older than 500,000 years, is possible.
For years they have been gravely advising their fellow Christians that science rules out belief in a historical first pair of human beings.