The article discusses the author's experience at AWS in 2016, where they were tasked with investigating the potential of blockchain technology. After researching and meeting with various stakeholders, the author and their team concluded that blockchain was not a strategic investment for AWS. The article also mentions the cancellation of the Australian Stock Exchange's blockchain-based trading system and the author's skepticism towards the technology. The author believes that blockchain is often a solution looking for a problem and that its potential uses are limited.