Human beings will colonize Mars in the next two hundred and fifty years. That would be my wager and guess. I agree that the next problem will be that many arrogant people will say and start believing that it will happen very soon, but I even think the goal that the United States is to have one space vessel be there by 2030.

In Phillip K. Dick novels, the governments of Earth are trying to get people to go be colonists on Mars, through advertising, to ease overcrowding here, but the colonies that are on Mars in the novels are miserable. I agree that it will likely be like that.

I don't see why having miserable colonies on Mars isn't a possible goal though. It seems pretty likely to happen in say two hundred years.