One element is the concept of perception. Berger was very interested in how we perceive the world around us. In storytelling, this could translate to how characters perceive events, other characters, and their surroundings. Sontag's ideas on the impact of media and visual representation can inspire the use of vivid descriptions in a story. Another element is the idea of cultural context. Both Berger and Sontag explored how culture shapes our understanding. In a story, this can be used to create a rich backdrop and help explain characters' actions and beliefs.
One way is to draw on Berger's ideas about how we perceive images and Sontag's thoughts on photography and interpretation. For example, if the story involves descriptions of scenes or characters, we can use Berger's insights on how we look at things to make the descriptions more vivid. Sontag's ideas on the power of the visual can add depth to the story's mood. We could start the story with a visual image, and then use their concepts to unfold the narrative, like exploring how the characters in the story view the world around them through Berger's perspective and how the story's events are captured and remembered like in Sontag's view of photography.
One of the highly regarded Gregg Hurwitz novels is 'Orphan X'. It has a great blend of action, a complex and engaging protagonist, and a thrilling plot that keeps readers on the edge of their seats.
The main idea might be about a new perspective on the human story as presented by Gregg Braden. It could involve new understandings of human evolution, consciousness, or our place in the universe.