The advent of advanced automation and AI has opened the door to new possibilities, including the potential for a high-tech, non-profit system of production. While this remains largely untested at a national scale, it's not without precedent: consider open-source software, which is created, maintained, and improved by communities of programmers without monetary incentive.
Dismissing the possibility of a moneyless society because it hasn't been empirically tested is a bit absurd. It's akin to saying we should never have tried to fly because, for millennia, empirical evidence suggested humans couldn't. The process of human advancement is often about challenging the perceived limits of possibility. With careful planning, ongoing innovation, and a collective will, there's no reason why we can't explore alternative economic systems that better serve our needs.