Neuroplasticity in the Digital Age: How Structural Inequities Shape 21st-Century Cognition and What Systems Need to Change
Original framing: “What to read this week: The 21st Century Brain by Hannah Critchlow” — New Scientist
Critchlow’s emphasis on neuroplasticity is scientifically valid but narrow; it overlooks epigenetic factors, the microbiome’s role in brain function, and the impact of endocrine disruptors (e.g., microplastics, pesticides) on neural development. The 'digital world' is not a neutral environment—it is engineered by platforms prioritizing engagement over well-being, with dopamine-driven feedback loops that reshape attention spans. Longitudinal studies on screen time and cognitive decline remain contested due to corporate-funded research biases.
The 21st-century brain is not merely adapting to digital stimuli but is being systematically reshaped by a confluence of late-stage capitalism, colonial epistemologies, and platform capitalism’s attention economies—a process Critchlow’s work frames as neutral individual growth.
This framing obscures how Indigenous knowledge systems, from Andean 'chakana' to African 'ubuntu,' offer more holistic models of cognition that resist the commodification of thought, while marginalized communities bear the brunt of cognitive exploitation through data colonialism and algorithmic bias. The scientific consensus on neuroplasticity is weaponized to justify Silicon Valley’s extractive logics, yet it ignores the epigenetic and ecological dimensions of brain health, revealing a crisis of knowledge governance rather than mere adaptability. Future solutions must center decolonization, public ownership of cognitive infrastructure, and the elevation of neurodiversity as a systemic strength—not a deficit to be optimized. The trickster’s laughter lies in how a species that once relied on communal memory now pays corporations to 'hack' its brain, while the real adaptation required is the dismantling of the systems that profit from its fragmentation.