The question assumes some purpose other than life itself. It’s possible that if there be a higher purpose, it is well beyond our understanding and control.
What will the earth be like 1000 years from now? 1,000,000? 100,000,000? Using the fossil record as evidence, I feel comfortable in predicting the human species, along with all life forms, will evolve in ways we cannot imagine.
My favorite quote from this thread is from Marshall McDaniel:
I contend Herbert’s game is that of a fool. If one must supply meaning to life, such meaning can only be applied to that individual.
In an episode of the X-Files, scientist Bambi Berenbaum compared humans to the cockroach:
“Eat, sleep… defecate, procreate. That’s all [cockroaches] do. That’s all we do, but at least insects don’t kid themselves that it’s anything more than that.”
I tend to agree, and must ask the question, “What is so awful about eating, sleeping, defecating and procreating anyway?”
The statement, “It’s good to be alive,” is satisfactory in providing purpose for me.
A different subject altogether, but perhaps the purpose of life is to provide a backdrop for our true nature, that is, the experience of nothingness after we die.