Another piece about looking at things perspectively.
Exactly to what extent are we 'built for survival'?. Sure, scientists (and well, I also) find it very interesting that the Earth has all the requirements for survival of humans and other animals. It's seemingly extraordinary that Earth is at the right distance from the Sun, has the correct tilt of it's axis to create seasons, has the correct balance of gases in the atmosphere, has an abundance of water in it's liquid state and all the animals that exist on Earth smoothly fit into food chains, thereby helping each other to continue to survive.
Then let's go to a smaller level. To help us digest food we have hydrochloric acid and other gastric juices; to hide from predators chameleon can change colour to camouflage themselves; to swing from tree to tree orangutan's have longer and stronger arms than legs; to compensate for weak sight bats have excellent hearing capability; to hold tools efficiently monkeys and humans have longer fingers than most other species...then here's an example I find really interesting, taken from Physics of The Impossible: 'Foxes, dogs, tigers, and lions have eyes that are on the front of their face in order to judge distance when they pounce on their prey. With two eyes, they can use 3-D stereo-vision to lock on to their prey. Prey, such as deer and rabbits, on the other hand, just have to know how to run. They have eyes that are on the side of their face in order to scan for predators 360 degrees around them.'
All these examples makes one think. Surely all this is way too much to be just a coincidence? It would be ridiculous to suggest after being aware of so many more examples like these that it is through mere chance that we exist today, right? After all, the odds become progressively smaller as we state each factor that has helped us to survive. Doesn't this suggest that there's concrete proof that some supernatural force, maybe a God, that controls everything around us as well as us?
But let's look at the other side of the coin, a side which many people didn't think existed. If this supernatural force had built us specifically for us to survive, then why is it that not even a single person is devoid of flaws? We tend to voluntarily get into arguments, start wars and kill each other, let alone kill other animals. Foods that are nutritious (and help us survive) - vegetables, garlic, juice from tulsi leaves - do not taste as good as foods that slowly poison us...Pepsi, fudge, cakes, chocolates (to be accurate, chocolates are beneficial when taken in small amounts). There is also drugs and smoking. People are obsessed with them because it gives them temporary relief and makes them feel 'cool' in society.
So what's the verdict? Is there some supernatural force controlling the elements? If there is, then why are we easily seduced by things that harm us? Is it a moral test, a test of our willpower that everyone is obliged to take from the moment they are born?