Yes but what happens to society when art, labor, "intelligence" and productivity all become abundant? These are not comparable to salt. You are comparing an apple to every orange tree that has ever existed.
More likely we devolve into Kardashian Type society of shallow attention seekers. Or worse, we move towards a permanent divide of the insanely rich who own the machines and everyone else who struggle to make it through the day.
There are some who would say that both of these have already happened.
We're just missing around 9001 steps between the devaluation of labor and the space exploration, which according to current understanding of physics is pure fantasy because all concepts of faster then light travel are purely "what-if" daydreams