" Darwin confessed"?? is that more intimidating than 'said' or 'wrote'? And what is irreducible complexity? Nothing is 'irreducible' till you get past the sub-atomic level....and there are ideas about that!

Sorry, oh anonymous one, but being more complex than YOU can figger out doesn't somehow endow a process or thing with mystical qualities. All them eyes and ears & hearts run by totally natural processes which have had over 3 billion years to make themselves confusing to you.