6 years seems doable with the current technologies if it becomes an international effort. Unfortunately, I think going to Mars will become less and less popular as the climate on Earth is rapidly getting out of control and, really, people just don't care anymore... Artemis is a prime example, if the US and allies wanted get back to the Moon, we would be there again. No doubt. China (good for them) will stomp the rest of the world at this space game. It seems like occidental people accept status quo or regressing and are just happy reading about/talking about other people twitting or tiktoking or whatever weird way to communicate.