You're right, the solution is already here!
I hope 2020 brings in a bunch of new people. Not that years really mean anything in the grand scheme, but it's sort of how we organize things.
I'm not worried about the future, either. I think we're just in a confusing time. There are people who have been around a lot longer than our current technologies. There are people who have only known an internet-connected world. Neither of them seem to know for sure how to navigate through life as it is right now. We need to embrace the technology and reconnect with the natural world at the same time. If we can spend more time in our third lives as you've said, this will be easier.
People fear losing their jobs, but if they plan accordingly and expect that it's very possible, they may find it's the best thing that ever happened to them. I'm excited to see what the next few years brings. I could be wrong and we could be headed for apocalyptic times, but I don't think so.