Thanks for sharing your interesting thoughts. It's easy to feel small and unimportant in the "grand scheme of things", and it's an healthy thought to have as this allows us to realise how ridiculous the ego is and thus helps us diminish its destructive impulses.

But on the other end, it's also true that everyone is an universe in itself - no one has ever lived the same way you did, had the same experiences, thoughts, emotions, etc. Without you and all the equally "unimportant" beings to perceive it, no universe would exist as there would be only be nothingness - there might still be matter and energy, but it would be just like nothingness if no one perceives it (if a tree falls and no one hears it, did it really happen?). The only true and meaningful universe is the one that's created through the interplay of all these micro-universes that living beings are. And in a butterfly-effect kind of way, all of your actions can have grand unforeseable consequences on the fate of Everything.

And thus, somehow, every single being is an essential and irreplaceable part of the universe. To paraphrase Carl Sagan, this is how the universe gets to know itself in a way that goes deeper and deeper with the passage of eons.

Sorry for the hazy comment. Your fault for writing a thought-provoking post ;)

(And by the way, selfies are not stupid when done in moderation. Every person and moment is precious and deserves to be preserved in some way.)