Foundations of ID

Why come up with a helicopter design for bats when the wings I designed for birds do the job perfectly well?

A bat's wings are not only different from a 747's; they are also quite unlike the wings of a bird. They lack feathers, obviously. And although the humerus, radius, and ulna of birds are quite similar to the humerus and radius of bats (which have only a vestigial ulna), avian hand bones have largely fused [see illustration above]. But bats' carpal bones conjoin at a point about halfway along the leading edge of the wing; the bones of the short, clawed first finger (homologous to our thumb) jut forward. The long second finger forms most of the distal half of the wing's leading edge. The third finger runs closely behind the second, but all the way to the tip of the wing. The fourth and fifth fingers run from the leading edge to the trailing edge of the wing, and stretched across all the fingers is a thin, flexible skin [see illustration below].

If I flip 12 coins together at once and want them to all come up heads, I will have 1 chance in 2^12 of this happening. But suppose the system slowly evolves into existence.I will flip 3 coins together, wait a year, flip another 3 and add them to the system, and continue this for four years.The first year, the odds I will get all heads is 1 chance in 2^3. And I will have those same odds each year for four years. Then to calculate the entire system, I have to multiply all the steps together:2^3*2^3*2^3*2^3 = 2^12 -- It's exactly the same!

If life was designed the designer started from scratch every time (no short term memory?) and was totally incompetent.