★When did we begin to delegate not just tasks, but part of our thinking as well? At what point did we stop memorizing, navigating, or concentrating the way we used to? Are we witnessing a silent transformation of our minds?
★Spanish technology expert Juan Diego Polo explores how digital technology—from Google to generative artificial intelligence—is changing the way we use our brains.

When did we begin to delegate not just tasks, but part of our thinking as well? At what point did we stop memorizing, navigating, or concentrating the way we used to? Are we witnessing a silent transformation of our minds?

Juan Diego Polo explores how digital technology—from Google to generative artificial intelligence—is changing the way we use our brains. Research such as the so-called "Google effect" has shown that we remember less when we know information is stored online. Subsequent studies have revealed changes in our spatial orientation with the use of GPS, in our fragmented attention due to social media, and in our creativity and analytical skills when we turn to AI-based assistants.

Neuroplasticity—the ability that has allowed our species to adapt to its environment for millennia—is still at work. But now it faces an artificial ecosystem that evolves faster than we can consciously process. Memory, concentration, critical thinking, and social connections are all influenced by tools designed to facilitate and optimize every mental gesture—tools built by companies with their own agendas.

It is worth pausing and looking squarely at what is happening. Understanding this change is the first step toward deciding how we want to coexist with these tools, and how much room we still want to reserve for our own capabilities.

Because this is not just about technology. It is about how we think, how we choose, and what we are willing to keep as our own.

Juan Diego Polo is a telecommunications engineer who has spent years teaching professionals across all sectors how to work with artificial intelligence. He teaches at companies, professional associations, and business schools throughout Spain. Precisely because he has spent so many hours showing what these tools can do, he began to observe what they also take away from us. This book was born from that discomfort—the discomfort of a professor who one night found himself asking his phone for directions to his own home. He lives in Barcelona, where he tries to practice what he preaches: think before delegating, decide before automating, and never mistake speed for judgment.