In the past, communication often relied on letters, which could take weeks or even months to reach their destination. People primarily interacted face-to-face or through local community gatherings. Today, however, instant messaging, video calls, and social media allow us to connect with anyone, anywhere, in real-time. While this offers unparalleled convenience, it has also changed the nature of personal relationships. What is the main difference in communication between the past and the 21st century, according to the text?
A) People communicate less now than in the past.