Sharing is not a new idea, and it's been around since man first
happened on the earth.
However, it's mostly idealist, and most impractical. The only sharing that works, to an extent, is where resources are pooled via a centralized government, and used for the general welfare, like roads and bridges. Other than where it benefits the community as a whole, it's not something that leads to long-term success, for the idea or to the sharers.
Nobody wants to share equally if they can help it. It's the nature of humans, where, greed is a trait that is built into most of us. People want to own things, and people want to be different, and people want their freedom to do as they wish and to use whatever they can get their hands on. Most people would like ot share, without also contributing. Sharing where a company owns the resources, and people get to use the for a fee, is the same as renting. If that's the definition of what sharing is about, then, it's not really a revolutionary new idea, and why is anybody even talking about it?