It will only be zero as long as we don't allow rent seeking behaviour. If the technology has gatekeepers, if energy is not provided at a practically infinite capacity and if people don't wake themselves from the master/slave relationships we seem to so often desire and create, then I'm skeptical.

The latter one is probably the most intellectually interesting and potentially intractable...

I completely disagree with idea that money is currently the only driver of human endeavour, frankly it's demonstrably not true, at least not in it's direct use value, it maybe used as a proxy for power but it's also not directly correlatable.

Looking at it intellectually from a Hegelian lens of master/slave dialectic might provide some interesting insights. I think both sides are in some way usurped. The slaves position of actualisation through productive creation is taken via automation, but if that automation is also widely and freely available the masters position of status via subjection is also made common and therefore without status.

What does it all mean in the long run? Damned if I know...