In Order To Say That Some Function

As Can Be Seen Even By This Limited Number Of Examples Proteins Carry Out Amazingly Diverse Functions.

In The Abstract, It Might Be Tempting To Imagine That Irreducible Complexity Simply Requires Multiple Simultaneous Mutations - That Evolution Might Be Far Chancier Than We Thought, But Still Possible. Such An Appeal To Brute Luck Can Never Be Refuted... Luck Is Metaphysical Speculation; Scientific Explanations Invoke Causes.

In Many Biological Structures Proteins Are Simply Components Of Larger Molecular Machines.

Irreducible Complexity Is A Problem For Darwinian Evolution. Whenever We See These Complex Functional Systems We Realise That They Have To Be Designed.

Since Natural Selection Requires A Function To Select, An Irreducibly Complex Biological System, If There Is Such A Thing, Would Have To Arise As An Integrated Unit For Natural Selection To Have Anything To Act On.