Did you know that your brain processes 40 bits of information in order to make 1 motor response? What this means is that your brain runs on your ability to interpret/feel the world around you. Why is this so important?
This is important when you step on a nail. Your brain processes over 40 nerve impulses and you take your foot off the nail. When you see a tiger chasing you, running away would be a good idea. Okay, that was fun, what else does it apply to?