Fair enough. I do think that finding evidence of extra-terrestrial life would be amazing enough. If we could then later explore how life outside our own planet

Fair enough. I do think that finding evidence of extra-terrestrial life would be amazing enough. If we could then later explore how life outside our own planet behaves, I am in no doubt that our minds will be blown. And if we find a way to communicate with one of these species... perhaps by that time any philosophical speculation on what intelligence is will be rendered obsolete.