The S&P 500 companies spent $806 billion on stock buybacks in 2018, surpassing the total US research and development (R&D) spending of $608 billion. This trend has been ongoing for the past five years, with buybacks totaling $2.978 trillion and R&D investment totaling $2.736 trillion from 2014 to 2018. The article suggests that this prioritization of buybacks over R&D investment may have negative consequences for the economy and financial markets. The high levels of corporate debt and focus on short-term gains are also highlighted as concerns.