Never really understood why that requires an explanation. A universe full of life is 'interesting' from the perspective of life but that's a subjective sentime

Never really understood why that requires an explanation. A universe full of life is 'interesting' from the perspective of life but that's a subjective sentiment. If the universe was only full of rocks it'd be 'fine-tuned' for rocks. If you were one big mass you'd probably think this universe is tuned awfully wrong. 'Carbon chauvinism' of the wiki page alludes to this but I think you could even generalize it to 'life chauvinism'. Or alternatively you could ask, why isn't it fine-tuned even harder, with life in every corner? After all it's astonishingly empty in most places.