You do not understand what the term engine means ? well an engine powers a car what powers macroevolution that is what i was asking.
It's a stupid question, because it's the same thing that "powers" micro-evolution. There's no reason to make the distinction of what "powers" macro-evolution.
Changing the subject are you.
You make a habit of this far more than I do.
You don't need to provide a mechanism ? are you redefining science ?
It's a stupid question because there aren't any separate processes powering micro or macro. The two are simply the same thing on different time scales. It's what I've been telling you macro-evolution is all along, merely the compound of micro-evolution. There is no 'redefining science' in what I'm saying.
Wrong it's not the same,micro-evolution are small scale changes and macro-evolution are large scale changes.
It is on you to prove the mechanism is the same that causes both.
No, they are quite the same. The two differ in time scales. Micro is the immediate, macro is the long term buildup of micro-evolution. There's no place for a separate mechanism between the two to come in. There are large-scale changes if you compare the evolutionary history of an animal from the start to it's present state, but these large changes just don't magically appear at some point in the history. They are compounded gradually from micro-evolutionary changes.