That is to say, Lewis is not without affinities with Samuel Butler who viewed the evolutionary impulses as existing in an accelerated form in machinery. But Lewis is not much interested in the time vistas of evolution if only because:
[Quoting Lewis]
The artist goes back to the fish. The few centuries that separate him from the savage are a mere flea-bite to the distance his memory must stretch if it is to strike the fundamental slime of creation.