I'm afraid that I might like the Watchtowe
It is eminently possible that you might like Watchtower.
It feels so hackneyed at this point to try to describe the dystopia we are headed toward (already in?)
I dunno, it seems to me that an advanced technology-enabled dystopia is not universal in its spread. Poor third-world countries do not seem to be headed that way. Corruption may have something to do with it, but I'm too tired at the moment to form a logical construct to validate that thought.
Crops as in grain are pollinated by wind, not by beans, if you meant that.
I'm sure it was bees and not beans that you meant to write, but I wasn't only thinking of bees as a pollinating vector (because you'd want more than just staple crops). As you said, agricultural crops are wind-pollinated, because they don't sprout beautiful flowers to attract insec (except I think with maize, which may be pollinated by bees). Pollination by insects is far, far more precise and efficient than pollination by wind. But in the case of a Mars colony, are you going to generate wind to facilitate pollination (not that it isn't possible, but will you get the desired effect)? I think you'd have to painstakingly do it by hand.
I believe Biosphere 2 was the first large-scale attempt, and they were mostly successful
Would you really consider Biosphere 2 to be a success? Yes, the people in there survived for however long it was, and certainly it was a radical new attempt at facilitating sustenance of an intelligent life-form like ours, but there was a failure in advancing the idea further, and while similar, it is quite different from a Mars habitat.
Mars has massive reserves of water and CO2 readily available, which plants can turn into all the air and biomass you want, and cellulose can be converted to a number of extremely versatile construction materials. Include sand and eventual mining operations for trace elements and you're well positioned to not only survive but grow and prosper.
I don't think growing crops there would be easy. Pollination is a big problem, and having to live on an algal diet won't be easy. Plus, there are the usual phytopathological problems: pests, diseases, parasites, etc. Managing contaminants, the inevitability of escaping gases, making do with extremely limited resources (industrial operations require massive quantities of power and water and I'm not convinced of your vision of growth and prosperity) are only a few of the innumerable challenges that lie ahead in even bootstrapping a Mars colony. Despite how tough it's going to be, I think it is an idea worthy of being pursued, but only after having carefully experimented it here on Earth.
self-sustaining human-supporting ecosystems are a hard problem
So, wouldn't it be prudent to set-up such an environment here on earth, run tests with human inhabitants, and then carry over that experience into building a Mars colony?
What was I thinking?
Well, you weren't. In my comment, while I certainly didn't mention the threats of violence to his person, an absence of condemnation does not amount to me justifying something as unacceptable as that.
1 + 1 = 3, for large values of 1.