The universe is about 14 billion years old, Earth just over 4.5 Billion..... Yet Humans as a clear race have only existed about 200,000 years - I'm not an engineer but that seems ludicrously wasteful
Well, the concept of "waste" only applies to someone with limited resources. But it's not as though God's going to run out of firmament, or has to pay for it by the yard, is it? And on the seventh day, God's boss came back from his business trip, and lo, he said, 'Dammit, God, there was enough space-time there for a dozen universes! That's the last time I leave you in charge.' ... not gonna happen, is it?
No it wasn't. It may have been what you meant to ask, but you didn't.
Since you ask, the (fundamental) laws exist because there are only a finite number of varieties of (common, at least) fundamental particles. Higher-order laws again are the result of limited variety in nature.
Saying that "laws of nature exist" is really just a (misleading) reification of this fact.
But I'm keen to learn your explanation. Does it involve magic?
Oh waa, waa, waa. Geez, what a great big baby you are. Is that all you do is whine? "Oh, how could I understand what you wrote, it was so unclear. You asked why does he think there are laws. I can't be expected to understand that, its not fair..I want my mommy, waaaa!"
How does you wife put up with you incessant crying? Does she have to buy you a big pair of adult diapers?
But I do agree, you can't be blamed if you can't understand simple English, you are just a series of chemical blunders afterall; purposeless, incapable of defining a standard for morality which coincides with a random meaningless existence, and only as smart as the carbon-filled mutations which flutter aimlessly through your skin filled bag of accidents. There hardly exists in there room for intrepid thought. Its really not your fault you need everything explained to you 3 times, with capitals, and minimal syllables. Fortunately you won't be insulted because you won't understand what I have written.
And then you guys wonder why you can't get published in the mainstream scientific journals.