Please read the article and answer the following questions.

Based on a phrase Google CEO, Larry Page used when evaluating an acquisition, the "toothbrush test" considers whether the acquired company $"$is something you will use once or twice a day, and does it make your life better?" The article explores the onset of this loose criterion as technology companies embrace very expensive acquisitions with less$-$than$-$usual criteria for financial consideration.

How does this article relate to Chapter $6?$