If we are able to colonise Mars we would have created technology that would allow us to survive on a fucked up Earth as well so their is little downside in exploring ways colonise Mars.
A meteor big and fast enough to break up the planet?
It's very presumptumous to say if we can colonise, than we "obviously must have" a solution for this scenario.
Let's fully assume you are right, theory and practise are 2 different things.
Take the burning of the building in London. Convince me it burned down because we didn't have the tech.
The solution and even production for fire-resistant material was available decades ago was it not?
It was inability to come true in practise that made it fail and burned it down. The reason within this context is not relevant. over 100 people dieing was very real, and ctrl-z doesn't work in the real world.
After that accident, buildings all over Europe were revisted and where needed updated with new materials.
A full on destruction off earth most likely will not have this luxury off a revisit, and as such from a survival point of view, it's best to not wait, but just start experimenting with things like space travel and colonies before Hollywood becomes real and a meteor will hit us by the end off the week.
It's very presumptumous to say if we can colonise, than we "obviously must have" a solution for this scenario.
Let's fully assume you are right, theory and practise are 2 different things.
Take the burning of the building in London. Convince me it burned down because we didn't have the tech.
The solution and even production for fire-resistant material was available decades ago was it not?
It was inability to come true in practise that made it fail and burned it down. The reason within this context is not relevant. over 100 people dieing was very real, and ctrl-z doesn't work in the real world.
After that accident, buildings all over Europe were revisted and where needed updated with new materials.
A full on destruction off earth most likely will not have this luxury off a revisit, and as such from a survival point of view, it's best to not wait, but just start experimenting with things like space travel and colonies before Hollywood becomes real and a meteor will hit us by the end off the week.