In this video he was basically explaining stuff about photography. And how photography can have a connection to people. And he also said photography is a lot more than just pictures. It can capture moments and emotions. And many other things. This shows us that photography is more than just pictures.

a photography technique in which the camera flash is deployed to illuminate the darker areas of an image, especially the subject. When the subject is underexposed due to the deficit of sunlight and other lights or sometimes due to the backlight, fill flash is supplemented to correctly expose the subject.