there is definitely a pattern to evolution.
each generations gleans from the mistakes of the former. yet there is always space for more mistakes. as you undo mistakes of yore, the threads are so vastly complicated that you invariably step on a few toes.
our forefathers would always fires fires in open spaces. the next generation discovered ways to control the great flame. us, we have redefined it's usage, method of creations and at times, even form of creation.
In the process we loose a bit of our former selves, paving way a species that is different in thought, form and communication from it's very own origin.