Murphy's Law states, “Anything that can go wrong, will go wrong.”
This pithy statement references the annoying tendency of life to cause trouble and make things difficult. Problems seem to arise naturally on their own, while solutions always require our attention, energy, and effort. Life never seems to just work itself out for us. If anything, our lives become more complicated and gradually decline into disorder rather than remaining simple and structured.
Why is that?
Murphy's Law is just a common adage that people toss around in conversation, but it is related to one of the great forces of our universe. This force is so fundamental to the way our world works that it permeates nearly every endeavor we pursue. It drives many of the problems we face and leads to disarray. It is the one force that governs everybody's life: Entropy.
What is Entropy and Why Does It Matter?
What is entropy? Here's a simple way to think about it:
Imagine that you take a box of puzzle pieces and dump them out on a table. In theory, it is possible for the pieces to fall perfectly into place and create a completed puzzle when you dump them out of the box. But in reality, that never happens.
Why?
Quite simply, because the odds are overwhelmingly against it. Every piece would have to fall in just the right spot to create a completed puzzle. There is only one possible state where every piece is in order, but there are a nearly infinite number of states where the pieces are in disorder. Mathematically speaking, an orderly outcome is incredibly unlikely to happen at random.
Similarly, if you build a sand castle on the beach and return a few days later, it will no longer be there. There is only one combination of sand particles that looks like your sand castle. Meanwhile, there are a nearly infinite number of combinations that don't look like it.
Again, in theory, it is possible for the wind and waves to move the sand around and create the shape of your sand castle. But in practice, it never happens. The odds are astronomically higher that sand will be scattered into a random clump.
Why Does Entropy Matter for Your Life?
Here's the crucial thing about entropy: it always increases over time.
It is the natural tendency of things to lose order. Left to its own devices, life will always become less structured. Sand castles get washed away. Weeds overtake gardens. Ancient ruins crumble. Cars begin to rust. People gradually age. With enough time, even mountains erode and their precise edges become rounded. The inevitable trend is that things become less organized.
This is known as the Second Law of Thermodynamics. It is one of the foundational concepts of chemistry and it is one of the fundamental laws of our universe. The Second Law of Thermodynamics states that the entropy of a closed system will never decrease.