Even though 200,000 people have (supposedly) signed up as potential volunteers on a one-way trip to Mars, there are still frightfully few details about how the mission will be accomplished. From the article:

[Astronaut Chris Hadfield] says that Mars One fails at even the most basic starting point of any manned space mission: If there are no specifications for the craft that will carry the crew, if you don’t know the very dimensions of the capsule they will be traveling in, you can’t begin to select the people who will be living and working inside of it. “I really counsel every single one of the people who is interested in Mars One, whenever they ask me about it, to start asking the hard questions now. I want to see the technical specifications of the vehicle that is orbiting Earth. I want to know: How does a space suit on Mars work? Show me how it is pressurized, and how it is cooled. What’s the glove design? None of that stuff can be bought off the rack. It does not exist. You can’t just go to SpaceMart and buy those things.”

The author concludes that the Mars One Project is “…at best, an amazingly hubristic fantasy: an absolute faith in the free market, in technology, in the media, in money, to be able to somehow, magically, do what thousands of highly qualified people in government agencies have so far not yet been able to do over decades of diligently trying, making slow headway through individually hard-won breakthroughs, working in relative anonymity pursuing their life’s work.”