It would obviously be an accident that one advantageous trait makes another advantageous trait possible.
What advantage would that extra skin give? It doesn't glide, but somehow you believe by random process that is being guided towards "gliding", it will become gliding. So your just giving to chance, while the chance is practically impossible, and this would not have to happened with just bats, but other birds, in all sorts of places....
But again, prehensile tails - what's useful for balance (longer and longer tail) gives rise to a new trait (being able to hold things with it). If we apply your argument to that case, we would say that because shorter tails can't hold things, there is no directing of that mutation for the tail to get longer and longer until suddenly it's long enough to be prehensile.
A tail is a tail, it can get longer and short, and if there is advantage for it being longer, it will get longer, otherwise, it won't. However if a short tail was of no advantage at all, then it could not have developed by evolution either, and yes this logic applies. A tail if was useless, would not randomly develop either.
And it would have to be at advantage getting longer and it's possible that a tail is a proof, I have not thought about it.
God could have created all this to test how we think. For example, we are similar to Apes and Monkeys. But we got to tail. If we had a tail it would advantageous. It doesn't make sense to loose it.
At the sametime, if an Ape didn't have a tail and was balanced, what would 5 centimer tail really do for it?
In other words, if it's useful for something else, that other usefulness can direct the mutation until, by accident, it turns out it's useful for gliding.
No that makes no sense, gliding has a design, if it gave it warmth, it would develop in that direction and not towards gliding.
Happy to discuss flies when we're done with the evolution of one trait making another trait possible.
I have never argued generalities. I argued a specific thing. So if you prove an instaneous, it won't prove universal. And I never argued universal, so you won't be proven me wrong.
So let's just discuss flies. The argument is all the same, except, it's flies. I gain uper advantage, because your argumetns which I disagree with and we debated, don't apply to it.
So it's up to you to explain how a 1/100000 wing of a fly is useful and develops to a half a wing, and then it makes it fly.
You should realize I have the whole of creation in my arsenal to try prove creationism and design
And so far we have not talked complicated relationships and structures, we keeping it simple. The more detailed you get in science, the more evident it becomes that there is Design because it's really really so delicate.