This is a topic that could probably become it's own thread, but yeah Elon has made comments about a "universal income" being a probable eventuality for humanity. I'm not sure how I feel about it. Though when looked at in the full context of that discussion he was having, by the time we reach that point, everything about the day to day life of humanity itself will have changed far beyond what we can understand and predict right now. The basic context (my interpretation just from fuzzy memory) - There will come a time where robots and computers are capable of almost everything, and the trend of replacing the need for human labor with robots will continue. The proportion of available job opportunities per human in existence will continue to decrease. The world economy will have to cope with that eventuality, and provide people a way and a will to live in the process.
Now is that 20 years, 50 years, 100 years from now (or does an apocalypse cut us short), who fawking knows. But we can't deny we are literally building ourselves out of work on the grand scale.