It could all, at any point in time, without warning, be snuffed out, like God blowing out a candle. A singular unforeseen event could make it all literally disappear in an eyeblink, and we, all of us, everything we ever did would be gone from the universe forever.
Except -- there are just a handful of artifacts on other worlds and floating through the void that will attest to our existence, to stand up to the all consuming fire and say "We were here!"
That is why space exploration is important. Even if no other human ever steps foot on an alien world again, it would still matter. Our probes and our landers remind the Void that humans mattered, in a way nothing else in the universe (that we know of) has mattered. We let the Universe see itself for the first time.
Except -- there are just a handful of artifacts on other worlds and floating through the void that will attest to our existence, to stand up to the all consuming fire and say "We were here!"
That is why space exploration is important. Even if no other human ever steps foot on an alien world again, it would still matter. Our probes and our landers remind the Void that humans mattered, in a way nothing else in the universe (that we know of) has mattered. We let the Universe see itself for the first time.