"Many who work in tech are living their lives as if it's the carefree Roaring 20s, while I'm more or less stuck in the Great Depression."

Of course, the roaring twenties were themselves times of relative inequality, and that name only describes the excitement, culture, and affluence of the urban rich of the era. The author seems to be describing the modern day euphoria over the power of the tech industry to make a new world as similarly one-sided.