Two and a half millennia ago, the Greek philosopher Heraclitus stated that “The way up and the way down are one and the same” (Fragment B60). In doing so, he simultaneously spoke of the unity of opposites, cosmic change, and the ascent to wisdom versus the descent into ignorance—for the very same mechanism that allows us to understand can also lead us into self-deception.
This early philosophical lesson came to mind as I read recent studies (for example, in Nature and Scientific American) on the negative impact of GPS navigation on humans, particularly how it diminishes our spatial memory and cognitive abilities, thereby reducing our capacity for navigation and orientation.
According to experts, excessive GPS use weakens—and, in extreme cases, erases—our cognitive maps: the mental representations and spatial images we create of our surroundings to navigate and understand them. These mental structures are, in fact, essential for our sense of direction.
While the undeniable benefits of GPS should not be overlooked, one of its critical downsides is that, as we stop using our cognitive maps, we are left with only one alternative: following the GPS’s instructions without question—“In 200 meters, turn right.” And some people obey these commands so blindly that they find themselves in uncomfortable or even dangerous situations.
Furthermore, we lose connection with our environment because we no longer need to pay attention to buildings, monuments, or other landmarks that would otherwise help us recognize where we are and how to proceed toward our destination. In other words, we have become passive navigators, both in the streets and in life itself.
Though this reflection may seem theoretical or even exaggerated, a recent conversation with an acquaintance illustrated this reality in a striking way. For the past two years, she has visited her daughter—who lives in another city—almost daily. Despite making this trip countless times, she told me that she could not make the journey without GPS.
"I know how to get there, but I don’t know the way," she said. Respectfully reinterpreting her words, one might say: "I know how to reach my destination by following the GPS’s guidance, but I do not know how to get there on my own." Put another way, the path traveled remains unknown. And the same thing happens in our lives.
No matter how much the way up and the way down, inward and outward, toward the atom and toward the universe, are one and the same (Heraclitus), and no matter how much “a journey of a thousand miles begins with a single step” (Lao Tzu), failing to know the path we have traveled means disconnecting from ourselves, from universal processes, from the unity of opposites, and from the path of life itself.
A little over a century ago, Antonio Machado taught us that “We make the path by walking.” Machado suggested that life is not a predetermined road. Instead, we create our own path through our actions. Now, we have forgotten even how to walk.