Who said that growth would stop because of satiation?
In an essay entitled Economic Possibilities for Our Grandchildren, Keynes famously argued that people would one day only need to work 15 hours per week (see bottom of p 4).  This was linked to an argument about satiation (see p 3, half way down), although he was careful to say that this applies to absolute needs, and that relative needs (ie needs to feel superior to others) may be insatiable.
Note that Keynes' essay is just pages 1-4 of the linked document.