Seeing the Earth
What would happen if we built a space station exclusively for tourism, and we sent every fifth grader up on a field trip to view the Earth? Money aside, would that alone change the world?
I imagine it would, that it would unite humanity to one singular purpose: improving our home, and life on it, as much as possible. And engaging in such a thought experiment gives me hope, despite all the negativity in the world.
We are more similar than we are different, and from the grandest perspective, we all want the same things. If we return to the Earth, we can achieve such synergy and harmony.