ChaoSkeptic

Current scientific evidence points to the universe forming out of the expansion of a Singularity around 13 billion years ago. After about 9 billion years of matter forming, galaxies forming, dying and then reforming, our tiny star was born. Out of the refuse left over from the Sun came our minuscule blue planet. Around 3 billion years ago complex organic compounds formed in the oceans. For the first 2 billion years or so those organic compounds reproduced like crazy forming more and more complex life forms. Eventually fish appeared, then amphibians crawled onto the beaches, then reptiles braved the continents.

At some point some of those reptiles developed fur to help keep themselves warm. Some of these mammals roamed the forests and learn how to climb through the trees. But then the trees were not good enough for them so they came back down to the ground and formed tribes to keep each other safe. These upright apes roamed the lands hunting down other animals until that wasn't good enough either. They settled down, built huts to live in, and started planting their own food rather than searching constantly for it. At some point they learned how to read, write, do math, harness electricity, and kill each other very effectively. It's all been down hill from there.

As for the purpose of all this, it doesn't exist outside of your mind. However we constantly want purpose to be there so we start making stuff up until the world makes sense again. Some stuff actually does make sense. Others don't because we just don't have enough information. A lot of times the made up stuff is more interesting and exciting than the real truth. But that some people's made up stuff is very different from other people's made up stuff. That is the main reason why we learned to kill each other so effectively...