The question as to why there are certain laws of nature that exist in the universe has led people to quite a debate about how it came into existence and whether these laws are simply arbitrary.
Some scientists try to explain it through the multiverse theory saying that our universe is only one of many and it exhibits the laws as such and it is possible that other universes may have their own arbitrary laws. But perhaps, we may have been myopic in our perspective of the universe.
Noson Yanofsky in his article suggests that maybe we have only been looking into the predictable aspects of our universe, neglecting or leaving out the rest of the chaotic parts.
There is another, more interesting, explanation for the structure of the laws of nature. Rather than saying that the universe is very structured, say that the universe is mostly chaotic and for the most part lacks structure. The reason why we see the structure we do is that scientists act like a sieve and focus only on those phenomena that have structure and are predictable. They do not take into account all phenomena; rather, they select those phenomena they can deal with.
(Image credit: Wikimedia Commons)
if you're born ryan gosling, you might feel lucky, until you die in a plane crash
that's chaos
but h2o is always water, never h3o
that's deterministic law