It’s a luxury of thoughts really. I’ve done the same for self-driven cars couple of months ago.
The thing at the end is more of a commentary on human’s way of treating animals and other inferior creatures. Suggesting that we might end up being those inferior creatures. In the end we just don’t know what would trigger such a thing and I find that intriguing.
That's could be true, you know... We never can tell, it's always wise to treat them better. Lol. At the end of the day, we share this world with them all....