The author is trying to look at two factors emerging due to the interplay between labour and technology or skill and digitalisation. The main argument put forward by the author is a transformation of technology is having a deep impact on the labour markets. The changes are also reflected back in the labour economy relations. Autor's hypothesis of routine-biased technological change (RBTC) assumes that technology or ‘digital capital' can cause substitution for human labour power in the middling routine tasks, which leads to an excess supply of workers with medium-skills. Those medium-skilled workers, who are displaced or thrown out from the have to find an alternative one which asks different skill requirements in the complex digital job market. Which is a result, job polarization across the economy. In other words, the author argues that today's availability of work or employment is highly defined by the complex interplay between worker skills and digital capital in doing certain tasks.