system
Given the following post, respond as if you're commenting on Reddit:
human
Did humans develop complex vocal chords as an accidental byproduct of evolving to have longer necks or did ancient humans slowly develop them by making enough sounds that more complex vocal chords were forced to be developed?

Did humans just get really lucky to be social animals that accidentally developed complex vocal chords?
gpt
Since genetic material doesn't change depending on people's activities, so vocal chords couldn't have been forced to evolve. Vocal chords, just like everything else, is an accidental feature, that stuck, because it was useful. In evolution, no feature is forced to develop.