Should you go to Mars? ft Bill Nye

Unless you can think of a better place to build a self-sustaining and expanding off planet colony to ensure the survival of the human race. And create a colossal incentive for the accelerating improvement spacecraft technology. Yeah we need to go to Mars.
There are simply too many catastrophes that could befall life on a single planet. And it needs to be done while the window of technology is open. If history repeats itself we may either rapidly through some massive disaster or gradually due to lack of interest or other factors have a massive decline in our level of technological advancement. As many ancient societies have. And those societies only recovered centuries or millennia later. So it is important that humanity becomes a spacefaring civilization and a multi planet species while the window of technology is open. Because if we don't, someday it may not be. And the last thing we want is to be confined to earth until some eventual extinction event.



Btw SpaceX's MCT will have the delta V to reach mars in 3-4 months. With a cargo capacity of 450 tonnes. So with a relatively short trip time and proper exercise zero gravity shouldn't be too substantial of a problem.