[EnderWiggins]

“Evolve” doesn’t mean just to “change” it means “develop gradually, esp. from a simple to a more complex form”.

Well... there's your problem right there. That is not what "evolve" means.

Evolution is non directional. It can go from simple to complex, complex to simple, or laterally with no change in complexity at all.

Think for example about a theoretical scenario in which a horse evolved into a cow. Which one would you say is more complex than the other?

[igotsix]

evolve |iˈvälv| verb 1 develop gradually, esp. from a simple to a more complex form : [ intrans. ] the company has evolved into a major chemical manufacturer | the Gothic style evolved steadily and naturally from the Romanesque | [ trans. ] each school must evolve its own way of working. • (with reference to an organism or biological feature) develop over successive generations, esp. as a result of natural selection : [ intrans. ] the populations are cut off from each other and evolve independently. 2 [ trans. ] Chemistry give off (gas or heat).