Why do we produce luxury cars while people are dying in poor countries?

Why do we work on missions to Mars while our own planet has problems?

Why is Starbuck’s revenue is 26,5 billion dollars, while malaria would cost 8.5 billion dollars to eradicate?

Why do we worry about climate change if nuclear weapons are a more immediate threat?

These trick questions see humanity as one entity.

There are almost eight billion people on Earth, each with their own thoughts and skills, and interests. And we should pursue those interests and ideas, whether they’re ground coffee from Seattle or putting people on Mars.

Ground coffee leads to cafés and exchanging of ideas, and putting people on Mars may make our lives better on this planet too. Possibly every step required to put people and materials on Mars is directly useful for figuring out how else we might live on Earth too.