CPG Grey just posted a new video of which the basic summation is that we're on the verge of a major revolution in automation. Machines are reaching an apex at which they will out compete humans in as much as 45% of current jobs over the next 20 years and there will not be enough new economy jobs to replace them.
I currently work as a website administrator so I think i'm safe for a while. However if you're a taxi or truck driver, I would seriously recommend considering your options for the future.
Such monumental change is scary, however I think if it's managed right it could turn out very well on the other hand **** could go very badly wrong.