The article argues that the era of Big Data is over, as most organizations do not have massive amounts of data and the technology to handle large data sets has become more accessible and affordable. The author, a former engineer at Google BigQuery, claims that the focus on Big Data was misguided and that most companies can manage their data with traditional systems. The article presents data and examples to support this claim, including the fact that most customers using BigQuery have less than a terabyte of data. The author concludes that the industry should shift its focus from handling large data sets to using data to make better decisions.