Assuming you are talking about free basic necessities: I can conceive it fine, I just also understand that conceiving doesn't mean it will work, and history has shown it won't. Me making the statement was itself conception no?
I can conceive of a million different economic systems, but I also understand most of them are infeasible, and the risk of running the experiment is extremely high, with little to gain in a my country, where obesity is a much larger problem than starving.