Atheism

[RoadRunner79]

Optimal for what (or in whose opinion)? 

Depends on the biological function 

Why do you not think that the same reasoning would apply to my car?   

Nope invalid anology 

 Have you considered, that this argument is based on faulty reasoning and or assumptions?

Nope because it's not 

  This is not a very good argument against design or for evolution as is seen easily when applied to my car, or any other thing that we know is designed.    

That's just the point that you for refuting your argument for me . You can't compare them .

That and evidence shows that changes by chance are far more likely to cause dysfunction, than to create new functions.

And that does not refute my point

Take the same reasoning, and apply it to anything else that is designed.  The conclusion doesn't follow.   So you saying that it is an invalid analogy, with no reason given... doesn't mean very much to me.  If you care to reason through this, and show where I am wrong, then I'll listen.   If you just want to say NO!  and lalalalalala  with your fingers stuck in your ears, then so be it.  I'll treat it the same way I do a 3 year old, when they throw a tantrum.