niceguyforever wrote: in the end nothing is achieved .but we feel some sort of satisfaction after we compete for what ever reason .
From a physio-neuro-evolutionary perspective when we achieve, the pleasure center of the brain is rewarded. That is why we don't relax, we are hardwired to seek that release of endorphins and dopamine. Those men that had a brain wired to just "chill" ended up not passing along their genes to the extent the "competitive" males did. Those with a brain that just "chilled" were enslaved or killed off as were their families and offspring.
Fast forward 100,000 years. We still seek the release of dopamine and our brains are not really able to detect the difference between a dopamine trigger of shooting a low score of golf or dopamine released because you just stepped off the moon lander. The amount of dopamine and duration might be slightly different, but the brain does not register the major significant difference between these two achievements. The brain simply registers dopamine. Eventually even the man that returns from landing on the moon has the biological reward of dopamine wane and so he goes to seek his next release of dopamine by purchasing a scratch off lottery ticket.
This is why if you ever win the lottery, you will be happier selecting annual payments than getting paid in a single lump sum. With the one lump sum you get a release of dopamine, one time. If you select annual payments, then each year when you receive the next installment you experience another shot of dopamine. The brain can't tell the difference.