Parking my comment here to be part of the dense club.
Why would you even need forever growth? Is it good enough that old companies die and new companies replace the old? In that process, there's always growth to find and invest in?
There's always winners and losers. We hope the market provides us with ever improving options, which could be a win for everyone. Some may lose by taking down zombies, but the market overall improves. </overly simplified and probably wrong answer>