Why would I imagine a reality where I'll probably die of some horrible disease and convince myself of all the sickness and misery of my own body, with the fear that I'll eventually cease to be for the rest of eternity? That's not a comforting scenario, so I can just change it right? No, I can't. There are a lot of things worse than feeling alone. I don't need the company of the many horrors of life as we know it.
I think we were put here for a reason, and in a way I think that reason is to work towards understanding our creator, to unlock the secrets of the cosmos. But first, we must get beyond our pettiness of killing and cheating one another for a power or money grab. People care about wealth and power more than they care about truth. In 2017, we're still warring over our own mass-mental illness, rather than really pushing the species forward in true space exploration. The so-called space race was a petty race for the ego of a few nations. Earth is the starting point, but it's our limited chance to get started, and we still haven't left it yet. We're a disappointing bunch. Too caught up in the idiocy that is policy making and domineering on Earth, to care about our fragile state of existence and our need to populate the stars.
We can't ever find the answers if we don't actually seek for them, which we for the most part don't do. We instead continue to reassure ourselves that we know them, or that there are no answers and most are content, and let's face it most of us can't rub enough brain cells together to do something worthwhile other than reproduce.