Like, if I hit these two rocks together, they could have a violent thermonuclear reaction that wipes out everything in a 600 mile radius. It's extremely, extremely, extremely, almost infinitely unlikely, but THERE'S ALWAYS THAT CHANCE ISN'T THERE
Unless the rocks are made of plutonium or uranium and are being smashed together at a few hundred miles per hour, I am fairly certain what you are describing is in fact impossible. Perhaps not, as I don't have the greatest of knowlage on nuclear physics, but I'm fairly certain.
it seems as if humanity has evolved around us, turning us into soft, meat sacks.
does it hurt to walk on rocks? buy shoes!
is it hot in the summer? turn up the air!
dont wanna read Moby Dick? watch the movie!
...
How much do you really
know about evolution?
While some traits will start to vanish due to our technology, have no doubt, it's because
our technology has made those traits useless to us. At the same time, average height and brain size have been increasing over the past few thousand years, as those are useful traits to possess.
Air is also terrible.
Getting worse, too. Oxygen levels are decreasing, carbon dioxide is increasing.
Very, very slowly, of course, but still.
I assure you, we'll have a way to deal with that before it threatens our inhabitation of Earth. Hell, we could probably deal with it now if we had to, but it would be a struggle.
Behavioral evolution, in a sense. It turned out that around the time we figured out how to do that whole agriculture thing, it was easier to adapt our behavior than our bodies to our surroundings. Since our bodies no longer are really relevant to our survival and reproduction, they've kind of gone to shit and that's why most of us can no longer chase a boar until it drops dead of exhaustion. It's not the same process (in that it's not genetically based), but it's still a type of evolution (those behaviors that are beneficial will inherently outproduce those that are not, over time, on average).
Almost (excluding those with health issues) every human on this planet still has the potential to be a persistance hunter, you just have to train your body to do so. We still remain in second place for muscle density out of all the species on this planet, beaten out only by the chimpanzee.
These traits might end up breeded out some day, but that day will be very far away. In an evolutionary timescale, all of human history is nothing more than a small blip in time, where we've seen only the slightest changes in our species since the earliest human fossils we can find. I think it is far more likely we will be able to maintain or improve our physical attibutes as they are through genetic enginering far,
far before losing them becomes a real threat to us.
Author
Topic: Evolution (Read 6353 times)