Well..
There are other solutions available.
If capitalism is self-destructive concept when the further growth becomes impossible, it will have to reinvent itself.. Market (economy) is elusive space, and not only physical (material) things could be subjects of sale and growth..
See here:
https://en.wikipedia.org/wiki/Prosperity_Without_Growth
http://www.ephemerajournal.org/contr...conomic-growth
https://www.theguardian.com/sustaina...our-inequality