The growth of Zoom videoconferencing software shows the importance of face-to-face communications. People want to be able to read behavioral clues — such as smiles, furrowed brows, and hand signals — to determine tone and to understand a message. For those reasons and more, videos serve as a good educational and co-working tool. 

The use of video has continued to rise, and lines are crossing between education and entertainment use. YouTube and TikTok offer good examples. TikTok Duets offers a new type of collaboration: creating a complementary video to an existing video and displaying them side by side, in various configurations and with different types of “interaction” implied across videos.