There is a reason to be optimistic about the future of the human race despite we haven't build homes on Mars yet.
According to the astrophysical sciences professor, John Richard Gott the human race has a 95% chance of not ending in the next 5100 years and not after 7.8 million years from now, supposing we've existed for at least 220,000 years. He postulates this by using the Copernican method which he published in a paper in Nature Journal.
This should give us some hope, considering since 1947 the Doomsday Clock by the Bulletin of Atomic Scientists has been counting the minutes civilization has to midnight. The closer we get to it, the greater level of threat we're in.
The closer humanity has been to doomsday was 2 minutes in 1953 when the US tested its first thermonuclear device and obliterated a Pacific ocean islet and the USSR tested an Hydrogen bomb.
Back there the space race which the United States and the Soviet Union had gave great expectations to humanity regarding life in outer space. The majority of science fiction literature of the last 50 years thought by now humans should've landed in other planets.
But it didn't happen that way. In fact today NASA's budget remain as low as when the race ended, science degrees remain unpopular and there haven't been more trips to the moon since the Apollo missions.
In 2016 we're still 3 minutes to midnight, a level which haven't been seen since the 1980's.
"The probability of global catastrophe is very high, and the actions needed to reduce the risks of disaster must be taken very soon. That probability has not been reduced. The Clock ticks. Global danger looms. Wise leaders should act, immediately," reads the statement from the Science and Security Board.
The clock now includes factor such as climate change, not only nuclear threats as it did before.
According to Daniel James Baker in the Uncertainty Principle podcast nuclear weapons have lost their novelty and today's generations don't perceive them as such a great threat. Instead we're in a moment were possibilities are massive and humanity has a chance of being optimistic.