[Radix]

"Incorporeal, absent, invisible, convenient, and fictional suffice for me."

I suppose that "Pi" and "Zero" and other "intangible notions" also qualify as being without evidence of having existence.

Unless of course you can provide us all some physical evidence of "pi" or "zero" or some other intangible but fundamental precept upon which all of our modern "science' is based upon.

Drrr!

[gcruse]

Just because a notion is tangible bears not on whether it is real, else alchemy would have worked and The Crack in the Cosmic Egg would be a documentary.

Attend carefully the difference between possible and probable.
Substituting one for the other lays superstition’s foundation.

[burzum]

I suppose that "Pi" and "Zero" and other "intangible notions" also qualify as being without evidence of having existence.

Unless of course you can provide us all some physical evidence of "pi" or "zero" or some other intangible but fundamental precept upon which all of our modern "science' is based upon.

You sound like someone who likes Descartes' skepticism and his ontological proof. It should be noted that the scientific method is a posteriori, not a priori. If you agree with Descartes' skepticism (that there is proof that the world actually exists) then the argument is over. If you don't then you need to discuss evolution in standard scientific or inductive reasoning terms.