The interaction with Lents is of interest because it provides an opportunity to look again, in some detail, at a fascinating illustration of design in action.
There was a lot of mysticism and far too many guesses in 19th century. The time has come to modernize his views.
Scientists in Western cultures have been trained to see the world through a materialist metanarrative where the only acting players are matter and energy.
The human eye is for seeing, whether or not it has any effect on genetics. However, this common-sense view has a problem.
The degree of regulation and control required for this system is not only enormous, but contrary to evolutionary expectations.