This isn't really the post monetary future. Money will still be required. In fact, it will be the driver of economy productivity, replacing labor.
The merits of post money, while debatable, are not applicable here. We might end up getting there at some point in time but might have to go through this stage first.
I also could not think of a future without some form of money. I wonder why a few socialists I engaged with are passionate about such a post-monetary future. I suspect it is because of their hostility against capital in private hands.