I was replaying Wings of Liberty casually when I read this part of an info box on the Zerg tank Stetmann held in the Hyperion that grew throughout the whole game (I quote):
Another breakthrough, and this one scares me. I mapped my way through the DNA of some brain tissue, peering back thousands of years, and I isolated the strain from which the zerg Overmind was derived. Not enough to clone the Overmind, but I could follow this strand into how it controlled the zerg.
I’m sure a lot of people probably found out about this randomly already, but I find it funny how this incidentally connects with how Stetmann managed to create his own mecha-swarm.
For the record, whether this is an appropriate subject to talk about here or not I’m not 100% sure about but I thought it was a nice discovery I wanted to share with other people.