So the mind in the same way can be working as a great fitness indicator. Its complex and costly behaviors such as art and language might be advertising our fitness to potential mates. If sexual selection favored the minds that advertised high fitness, our creative intelligence could have evolved not because it gives us any survival advantage, instead because it is so difficult to be achieved and do not help more than moderately in our survival. It is not only humans that use complex behavior to advertise their fitness. Songbirds’ fitness indicators are repeated complicated melodious songs. Fruitflies do little dances in front of one another to reveal their genetic quality. To understand better, all these fitness indicators are what advertisements are to products. They are costly, excessive and luxurious. Dancing, language, humor, creative intelligence, all are evolutionary luxuries, none of them helped more than moderately to our survival. As fascist as it may sound, all these in the very end is another way to say “I am fit, my genes are good, mate with me”.