Showing posts with label natural selection. Show all posts
Showing posts with label natural selection. Show all posts

Wednesday, May 2, 2012

Evolution and Its Discontents

The general idea of natural selection, Darwin's explanation for how evolution happens, is pretty simple: organisms that can't survive in a given environment don't. Moreover, organisms that can't attract mates and reproduce won't propagate, so their genetic make-up will die out after a generation. (Of course, this leaves open the question of why there are still geeks in the human population.)

So from this, you can see that interfering with this natural selection process will affect evolution. If we help weak or unfit individuals survive and reproduce, we alter the outcomes. Yet we do this all the time. That's what health care is all about.

The Republican Party, on the other hand, is opposed to universal health care. They would rather see the 99% eliminated from the gene pool, so the human race can evolve into a species that can afford health insurance.

So the political party that doesn't believe in evolution is actually doing the most to support it.

Friday, February 17, 2012

Our Story So Far

Between 13 and 14 billion years ago, the universe arose from the cosmic explosion commonly known as the Big Bang. Things carried on for a while, and about 10 billion years later, Earth was formed. Lots of volcanic eruptions and earthquakes occurred, to the accompaniment of Stravinsky's Rite of Spring.

Once things were cool, microscopic aquatic animals appeared and then evolved into bigger ones that could eat their former colleagues. These creatures evolved over millions of years into fish, reptiles, birds, dinosaurs, mammals and lawyers.

Actual humans have only been around for a couple of million years, a pitifully small amount of time in evolutionary terms.  Yet somehow the species has managed to become differentiated into various racial and ethnic strains, professions, religious affiliations and sexual proclivities.

In particular, this process has somehow produced both me and the idiot who cut me off on the Mass. Turnpike this morning.