This is a TED talk that struck a chord with me. It is a British Economist talking about whether everything needs to keep growing forever - and pointing out that in nature things have a limit to their growth - then they explode or die.
She has developed her 'doughnut' theory, which makes a lot of sense.
It is 15.54 minutes and I strongly recommend that you find the time to watch it - it is definitely food for thought, given how many problems we have in the Western world as a result of the focus on growth at all else.