It should be easy to show evolution. If evolution is the grand mechanism that has produced all natural things from a simple gas, surely this mechanism must be easily seen. It should be possible to prove its existence in a matter of weeks or days, if not hours. A higher-order change, where the information content of the organism has been increased should be showable and is not. Developing a new species changes the existing information, but does not add new information, such as would be needed for a new organ, for example.
People are intelligent.
All of our life's experiences lead us to know that such a robot could never come about by accident , or assemble itself by chance , even if all of the parts were available laying next to each other. And we are certain beyond doubt that a canister of hydrogen gas, no matter how long we left it there or what type of raw energy we might apply to it, would never result in such a robot being produced. And God made them, and he made us.