Ontological Investigations

Let’s be honest: ontology—the study of what exists—is usually a slog through jargon and circular debates. Johansson’s Ontological Investigations is no walk in the park either, but it’s a serious attempt to cut through the noise and give us a workable map of reality. The book’s main hustle is to rescue Aristotle’s old-school categories of being and update them so they don’t embarrass themselves in the age of science and modern philosophy.

Johansson takes the Aristotelian idea that universals—things like redness, humanity, or being a tree—actually exist, but he tweaks it. Instead of these universals hanging out in some abstract, Platonic heaven, Johansson insists they only exist when tied to actual, physical things in space and time. This is called immanent realism, and it’s a middle ground between saying universals are just convenient labels (nominalism) and that they’re some ghostly forms floating around independently (abstract realism).

But Johansson isn’t just dusting off Aristotle. He leans heavily on Edmund Husserl’s phenomenology to build a more dynamic picture. Husserl’s big contribution was the idea of existential dependence—a fancy way of saying things don’t just pop into existence on their own. Everything depends on something else. Think of it like a spider web where tugging one strand affects the whole. Johansson uses this to argue that reality is a network of interconnected entities, each tied to others in a web of existence.

Then there’s intentionality, which is where Johansson gets really interesting. Philosophers love to debate what the mind is and how it relates to the world. Johansson says mental states aren’t just brain stuff; they inherently point to or are about something. When you think about your coffee cup, your mind is directed at that cup. This intentionality is a fundamental category in his ontology of mind, meaning the mind’s structure can’t be reduced to just physical or biological terms without losing something essential.

The book is dense, no doubt. Johansson’s style is academic and packed with philosophical gymnastics. But underneath the complexity is a clear aim: to build a metaphysical framework that respects both the lessons of classical philosophy and the demands of contemporary science and phenomenology. This is not just ivory tower theorizing; it has practical implications, especially in fields like information science where understanding categories and relationships is crucial for organizing data and knowledge.

Johansson’s work is a rare bridge-builder. It doesn’t throw out Aristotle just because he’s old, nor does it blindly worship modern science without question. Instead, it tries to find a synthesis that feels both grounded and flexible. This makes it a valuable resource for anyone wrestling with what it means for something to be real, how categories shape our understanding of the world, and how mind and matter interrelate.

But let’s keep it real: if you’re not already familiar with the basics of metaphysics or phenomenology, you’ll probably get lost or frustrated. The book isn’t exactly a beginner’s guide or a pop-philosophy primer. It’s a heavyweight contender in analytic metaphysics, so expect to put in some intellectual sweat.

Still, if you’re curious about how ancient ideas about being can still matter today, or if you want to see how philosophical categories might help untangle the messy relationship between nature, society, and the mind, Johansson’s Ontological Investigations is worth wrestling with. Just don’t expect it to hand you easy answers.