I could apply similar questions to the ISS:
1.) What justifies the tremendous expense?
2.) What purpose does the ISS even serve?
3.) Is there something that can be done on the ISS that can't be done on Earth or in Earth Orbit by robotic means?
When you start applying economic questions to scientific endeavour, where do you stop in your cost-benefit analysis? In the end, what is the existential purpose of our species? Would we be happier living in a cave banging rocks together? Is that where we're headed anyway?
1.) What justifies the tremendous expense?
2.) What purpose does the ISS even serve?
3.) Is there something that can be done on the ISS that can't be done on Earth or in Earth Orbit by robotic means?
When you start applying economic questions to scientific endeavour, where do you stop in your cost-benefit analysis? In the end, what is the existential purpose of our species? Would we be happier living in a cave banging rocks together? Is that where we're headed anyway?