There's an implied part where there's some living on Mars first and his goal isn't just to die in a crash landing shortly before he was going to die to life sup

There's an implied part where there's some living on Mars first and his goal isn't just to die in a crash landing shortly before he was going to die to life support systems giving out. Merely getting to Mars is difficult but plausibly attainable within his lifespan, but that is likely to turn out to be the easy part.