I take the view that if there is a 'purpose', 'creator', 'experiment', blah blah blah, then we can never know what that is, as we are 'inside' it - the wrong side of the firewall so to speak.
Therefore, as far as humanity are concerned there are none of these things, all we can do is understand OUR view of ourselves and the universe and how they behave via our own creations, explorations and experiments - not by making up stories that will never be proven.