Originally Posted by littledoc
You seem to adhere to a mindset that if something can't be observed or quantified, it's irrelevant. But "purpose" is by definition a qualitative concept, so you defeat the "purpose" of your own question with circular reasoning. Asking if life has a purpose requires first accepting that purpose is a possibility, which means accepting that qualitative aspects of our existance are relevant.
p.s. Not to mention that "relevance" is also a qualitative concept.
In philosophical terms, it's called begging the question and ontological committments respectively (or how the quality of thought determines the quantity of thinking).