Is human behavior just elaborate running and tumbling?
&gt; Why do some “gym rats” build their muscles well past the point of being a way to attract potential mates?<p>&gt; Why are some people willing to free solo climb icy mountains despite the danger?<p>&gt; Why are some people willing to have fewer children in order to pursue career goals?<p>&gt; Why are most billionaire tech CEOs interested in space travel and extraterrestrials?<p>&gt; There are no doubt potential evolutionary explanations for each of these phenomena.<p>No doubt?<p>&gt; But, from a purely evolutionary standpoint, these phenomena are at least (a) not obviously explained or (b) seemingly irrational.<p>Correct.<p>Many phenomena have an evolutionary explanation.  However some phenomena do not - random mutations happen and things pop into existence without much connection to mating, survival etc.  Trying to shoehorn evolutionary narratives onto them is not letting the evidence fit the theory, but instead trying to get facts to fit some preexisting theory.<p>Some traits just pop up due to random mutations, and trying to find an evolutionary mating&#x2F;survival&#x2F;etc. narrative for each of them does not make sense.