The Distributed Data Problem
Today, online retailers sell millions of products and services to customers all around the world. This was more prevalent in 2020, as COVID-19 restrictions all but eliminated visits to brick-and-mortar stores and in-person transactions. Of course, consumers still needed to purchase food, clothing, and other essentials and, as a result, world-wide digital sales channels rose to the tune of $4.2 trillion, up $900 billion from just a year prior.
Source: cio.com