I hear this all the time, but we really need to think about the _length_of_time_ these technology transitions of the past took before the human labor became irrelevant and displaced.
Go and look up how many hundreds of years it took for the printing press to become widely used across the globe--seriously. It's more than a human's lifetime, let alone more time than would be required to learn a new trade.
The job displacement that we're going to be faced with in the future will be cross-industry, and take the least amount of time of any technology transition we've recorded to date. It will happen too quickly for most people to retrain themselves, and we'll see a lot of folks without work opportunities.
The article discusses guaranteed income as a solution. I also hear this a lot, and I'm a huge fan of the idea, but it isn't possible for the United States to implement. I haven't seen an example where it is. If we take the _total_ fed gov revenue of 2015 and distribute it across the population, each person would be left with less than 10k/yr. I want it to work, but I just don't see how it can.