My personal feeling is that if humans would quit wasting their time bullshitting on the Internet all day, and we figured out a way to collectively be more productive, we could cure cancer, create artificial organs, extend life by a few healthy decades, eliminate poverty, etc then die peacefully in our sleep around 120.
I have no idea how we could accomplish this, but I have notice over the years, that we seem to repeatedly have the same conversations, and they don't add anything to our understanding or advancement in any way.