Does the 2nd law of thermodynamics apply to more?
The 2nd law basically states that the entropy of a system never decreases or remains constant. Or rather it can never become more organized, or less disordered.
Yet nature has been churning out more and more complex organisms for the past few billion years, so what’s going on here? How can a system (in a slightly different sense of the word) become more complex? How can humans have evolved from simple bacteria? Wouldn’t it make sense that humans would be devolving?
Nature does amazing things. When you look at the genomes of both humans and simple bacteria, you find something amazing. Even though humans are far more evolved, their DNA has been shrinking in a sense. There’s some single celled organisms with genome sizes far larger than the human genome. I believe this is because nature is obeying the 2nd law. It’s continually decreasing disorder.
The first organism to gain a genome, most likely some exotic form of a single celled guy or a virus, probably had built a genome much, much larger than currently exists. The vast majority of the DNA didn’t do a thing, not because it didn’t code for anything, but because the cell didn’t have anything to do with it. It hadn’t yet built the necessary organelles and enzymes. It was the simplest of everything.
The cell began to increase in complexity. The only way to do this, without violating the laws of the universe, is to allow the DNA to increase entropy. This is where the magic happens. When the cell increases entropy, or increases disorder, it subsequently increases efficiency. What better way to progress evolution? Abide by laws that should break systems down, whilst secretly building more complex machines. All by accident. They’re rebels, in a way.
It makes perfect sense too. Imagine the possibilities that could stem from random mutations throughout a near infinite number of organisms over the past 4 billion years. Combine this with DNA uptake systems and suddenly you have a rapidly evolving, however random, set of organisms. All fighting the second law of thermodynamics, mostly losing, but the lucky ones survive to reproduce and push the species forward.
Do this long enough and you wind up with a human. The pinnacle of evolution.The organism destined to get to know the universe.