Does microevolution logically include macroevolution?

what makes you think a fin or the like isnt as complicated as a [human] leg? take the wing of a skate or manta for example... many many more bones than a human leg and far more muscles and thus control systems. You would be better to ask how do you reduce the complexity of a fin to get a leg?

no it don’t.. it just needs accumulated change in existing genes to change them from ones that make scales to ones that make feathers.you constantly seems to think along the lines that boom a new gene was added an in the space of a generation a leg was born.Evolution don’t work like that. Micro and Macro are the SAME THING just viewed with different time samples. Micro is viewed on the generation timescale. Macro is viewed on the species timescale.