Consider the the times of our lives, this 21st Century.
Consider that it's never been the case in the history of our species for civilizations all around the world to be ascendent.
Consider that for the first time, we face a truly common set of challenges.
The story of our lives on this earth is about the integration of the people of the world in a way that was completely unimaginable to our grandparents. We are in the very early stages realizing our shared humanity in a meaningful rather than symbolic way. We are on the verge of recognizing the great common cause — the reality that we all share the same suddenly small sphere of organic chemistry hurtling through space at unbelievable speed around an enormous nuclear fireball — and embarking on an era of renewed purpose and discovery.
It is our nature to explore and discover. We look deeper and further into the material world and make great scientific and technological discoveries. We look within ourselves and discover greater virtues, and share ever wider the fruits of liberty, equality, community. This is what we are supposed to do.
Which isn't to say we don't have troubles. Clearly we do — but most of those troubles are within ourselves and one-another. They're solvable with time. The problems without are imminently manageable if we face them together.
There are more counterarguments to this than can be mentioned. It's true that sometimes it feels like we're squandering the moment on trivia and tripe, but some of that is just a feeling, and some of it is made real because the feelings exists in the first place. The beginning of something better always starts with believing that better is possible.
Consider that in our lives, there will be more literate, connected, free people than ever before. Consider what we might do together.