you're forgetting about the shear amount of money required to do this, the only way it will get done, is by taking a step and doing it, and if that step requires essentially creating an truman show, well, it's a start.
The thing I'm worried about with that is all the spectacular ways it is likely to fail, and how much it might put the public off from space exploration for a few decades.
It all sounds great in theory until people start dying in agony on live TV
That's been a risk since the very beginning, seriously the number of near misses that would have ended nasa if not for absolute pure luck is insane. I'm surprised we've managed to make it this far with such a small mortality rate.