If people want to see a sustainable future perhaps it's time to put their differences aside and consider a Resource Based Economy.
As long we don't see ourself as one organisme their will be greed, money, religion, inequality, pollution, politics, war, nationalisme, racisme, economic busts.
Humanity is so much more then it is today. if only they would apply their current technological knowledge without the obstacle of the current way our society operates.
I am aware this is unlikely to happen in my lifetime, we'd have to let go of our egos for this to work.
I see cryptocurrencies as a wonderful attempt to disolve the current power structure.
Unfortunately due to brainwashing by the media and our governments, elites and schooling, illogical people far outnumber those who take time to think for themselves.
I think people are too brainwashed to believe no one will work for something other then credits.
If you would like to learn about a resource based economy, here is a nice introduction video.
Never stop learning, peace.