I already somehow knew this, brain considers the photos or written notes as its own space, which is true, also helpful, for example when I don't want to remember things I can just write and take a look later, so i can remember consciously things i really want to remember
The research behind this is wild. The moment you decide to photograph something, your brain recalls fewer details about it. A 2014 Psychological Science study by Linda Henkel at Fairfield University confirmed this at a museum: visitors who photographed exhibits remembered fewer objects and fewer details than visitors who just observed. Capturing creates the illusion you've already processed what you saw.
Self-disclosure hits the same brain reward circuits as food or money. Harvard neuroscientists found that posting for reactions fires the nucleus accumbens (your brain's reward center, the same region involved in addiction) and the ventral tegmental area (where dopamine gets produced). This circuitry evolved to make you feel seen by your group. Social media pointed it at a notification button.
Psychologists call this the split between performance mode and experience mode, two brain states that can't both run at full capacity. These two states don't share well. When you're composing a caption or imagining reactions, you're running performance mode. The actual experience, being somewhere real, runs on whatever attention you have left. Duke research from 2016 found that tracking your activities to share them later makes those same activities feel less enjoyable.
Sean Parker, Facebook's first president, admitted in 2017 the platform was deliberately engineered around "social validation feedback loops." Posts decay in reach within hours, creating urgency to keep posting.
Nicholas Epley, a psychologist at Chicago Booth, found that people consistently overestimate how much others notice and care about them. The audience watching your life, the imagined one you're performing for, is much smaller than it feels.
Van Gogh produced roughly 900 paintings in a decade. He sold exactly one painting in his lifetime. Irises, painted in 1889, sold for $53.9 million at auction in 1987. When someone shows you their vacation photos and you feel like you kind of saw the trip, the feeling is roughly accurate.