The document discusses both the positives and negatives of cell phone usage. It notes that while cell phones provide connectivity and access to information, overuse can lead to social isolation and dangerous behaviors like texting while driving. The document also outlines the costs associated with cell phones and how their design has evolved from early "brick" phones to small pocket-sized devices. In conclusion, it argues that while cell phones are necessary in modern life, users must avoid the potential negative impacts on health, safety, and relationships.