[count-your-change]

You’re free to join the experiment if you like.
If I had never seen an acorn or a tree I don’t know what I’d say. And one must not confuse design with origin as the question about God making rocks does.

[dr_lew]

If I had never seen an acorn or a tree I don’t know what I’d say.

Well, you have seen them, so what do you say now?

Of course, your arrowhead is just a version of Paley's "watch in the wilderness". His argument, and yours, is incoherent, however. The watch is placed in contradistinction to nature, and by analogy we are supposed to place nature in contradistinction to itself. It's a specious argument.