Think of how our digestive systems are able to function no matter which way we're sitting or lying, carrying food to the right place in a peristaltic wave, even if it's going against gravity. Think of the pre-human who didn't get that gene. He's all like, "check out this handstand!", then as soon as he's upside-down, all the wooly mammoth he ate earlier is pouring out of his face. He suffocates, dying before he ever had a chance to procreate, and his shitty genes never get passed on. Hilarious.
Thing is, one day that guy will be us.
Evolution is not only biological, but technological. We already pity the people of the past—most of human history—who didn't expect to live past the age of thirty. Technology has doubled our lifespan just by tuning up our default biological hardware from the outside. Think of what we can do once technology moves inside.
It's a near certainty that we will merge with technology. We already rely on it, and there's gotta be a better way of interacting with it than through our fingers. When our brains and bodies are made more of bits and bytes than nerves and leukocytes, the people of today will be the pre-humans.
Looking back, we'll think that our squishy biological way of doing things was hilarious. "That's right son," we'll say, to our sons. "We had computers we plugged into walls, but our own method of recharging was—hah, it's so gross, but get this—we mashed up other living things with our teeth then let them slide down our throat. There were actually people who couldn't find things to eat, and they died. Forever! They didn't even have a backup."
And our sons, they probably won't even understand how (or why) we managed to get through the day.
Evolution makes failures of us all.
- Transcendent Man on Netflix. This documentary about futurist Ray Kurzweil will change your life if you even half believe his predictions are correct.