""" But there's a silver lining for people who hate this deal: By the government's own standards, the Comcast—Time Warner deal should be blocked. To understand why, you have to know that there's a thing in antitrust law called the Herfindahl-Hirschman Index, or HHI. In very basic terms, the HHI is a way to measure the concentration of a given market. And the HHI is the test the government's lawyers apply if they want to see whether a proposed merger would create monopoly-like conditions. """