The prostate.

Yup. Just these two words should be enough to make most older guys go "Uh huh, there is no way anyone would design something that stupid".

For the ladies and the younger guys who are reading this and going "a proswhat?", the prostate is a small gland at the base of the male bladder that surrounds the top of the urethra and which is responsible for producing parts of seminal fluid. I would show you a diagram but, frankly, that would be a bit gross.

Anyway, you may be wondering what this has to do with ID being a stupid idea so I'll tell you. The prostate drains poorly, is prone to infection, is really, really difficult to treat when it becomes infected or inflamed and, worst of all, grows as you get older. This growth is the clincher because, you see, as it grows it tightens on the urethra and pushes up into the bladder causing urine retention and ultimately renal failure followed by death. When you're twenty it's maybe the size of a walnut. When you're 70 or so it's getting towards the size of a lemon and causing all sorts of bother for about three quarters of the male population.

Now you're thinking, well, yeah but since we pop our clogs about 70ish anyway is that such a problem? Some theists might also be thinking that it's God's way of limiting us to our three score and ten years. Of course, that's bollocks because women don't have one. Maybe God thought they'd all die in childbirth before they were forty or something.

But to back to why it's a problem: Biblical patriarchs. These dudes lived for hundreds of years by which time their prostates must have been the size of a football. Hell, a basketball. Or they would be dead.

So something's wrong here. Firstly we have an incredibly badly designed organ, secondly we have the situation where the patriarchs couldn't have lived for hundreds of years unless surgery had been performed or they were catheterised.

And that, ladies and gentlemen, is just one more example of why ID is a silly business.