In an age obsessed with the total archival accumulation of digital traces and the relentless imperative of historical preservation, Perché dimentichiamo. Una scienza dell'oblio by Sergio Della Sala operates a necessary, counter-intuitive gesture: defining forgetting as a primary structural mechanism of mental and architectural efficiency.
Much like Allan Sekula’s critique of the sea as a "forgotten space" subsumed by global capital, Della Sala examines the human brain beyond romanticized interpretations of its recording capacity. The brain operates as a dynamic, highly selective threshold. Della Sala – a neuroscientist who demonstrates a rare balance between scientific rigor and narrative lucidity – highlights how recent scientific literature has accumulated an overwhelming disproportion of studies dedicated to the term "memory", while reserving a marginal share of research for oblivion. In the face of this cultural asymmetry, the author invites us to invert our traditional epistemology and constructs a true "praise of oblivion", demonstrating that what we retain of the world is the residual topography left behind by systematic erasure.
Throughout the discussion, the author deconstructs the persistent neuro-myths that dominate contemporary public discourse. With an approach rooted in critical realism, he examines the phenomena of eyewitness testimony, false memories, and cognitive biases, showing the plasticity with which the architecture of memory adapts and distorts itself. Della Sala interprets these imperfections as essential adaptive features. Total recall – the hypothetical condition of exhaustive retention – reveals itself as a paralyzing design failure, an unnavigable clutter where signaling is drowned out by ambient noise.
«Forgetting is the condition of existence for free thought and cognitive synthesis».
The systemic implications of Della Sala's theoretical framework extend far beyond individual psychology, offering profound resonance for spatial and cultural disciplines. Just as urban systems require demolition, waste management, and spatial vacancy to remain livable, human cognitive architecture relies on continuous pruning to ensure its functionality. By investigating the biological necessity of forgetting, the text shows how deep understanding requires careful selection rather than mere exhaustive cataloging. Oblivion reveals itself as an active, creative, and liberating force, a refined survival tool that allows the mind to abstract, generalize, and design the future.
Perché dimentichiamo. Una scienza dell'oblio
Sergio Della Sala
Giangiacomo Feltrinelli Editore
Milan
2025
208 pages
Italian
978-8807175183
Photos from Sergio Della Sala, Perché dimentichiamo. Una scienza dell'oblio, 2025