How long do you think it will take humans to colonize Mars? For the sake of discussion I will define 'colonize' as the point in time at which a human lands on Mars to live out the rest of their natural life. Do you think humans have the capacity to build an infrastructure on Mars that is reliable enough for a human to live out the rest of their natural life? If yes, how long do you think it will take us to accomplish this feat?
A prerequisite for colonizing Mars is to first land on Mars (although in Theory these two events could happen simultaneously). So, I will make this a two part question:
1. How long will it take us to land a human on Mars?
2. How long thereafter will the first person land on Mars to live out the rest of their natural life?
Bonus question: Assuming we do land a human on Mars, which organization/agency/government do you believe will be the first to accomplish this feat? Chinese Space Program? SpaceX? Nasa? ESA? Roscosmos? Bill Nye the science guy?