Some assumptions we tend to make.<br>-  Climate change won’t fatally screw up progress.<br>- We’ll never run out of the required raw materials for large space-related projects. If we do, we’re stuck on Earth till we go extinct.<br>- No very large undeflectable asteroid will cause fatal problems for us.<br>- …,(reply>), Maybe we have enough materials to advance to a stage where we can mine the solar system. If you are out of metal you can reuse my car.<br>Asteroids are a minor threat i think, lots of more worrying scenarios out there. Of course we could be hit tomorrow, but if its in a million years do we really care.<br><br>If sun is gonna expand to engulf us in 6 bili years then its sure gonna be a lot hotter here in 1 bili. Wonder how much actual habitable time do we have left due to our star.