There is a theoretical limit to index fund adoption where the index becomes zombified and price discovery stops happening. I think we're a long way from that po

There is a theoretical limit to index fund adoption where the index becomes zombified and price discovery stops happening. I think we're a long way from that point. There are reasons to not invest in index funds (why does anyone invest in bonds?) that have to do with the purpose of the investment not being to maximize return. That said I think there's still a lot of ignorance and gambling going on, which is why the zombie index has yet to rise from the grave.