I can't believe I finished this dense, infuriating, brilliant book. I had to read certain chapters four times, and if I only read a chapter once, I rarely understood it. Despite my careful reading, I'm not sure I fully get what Deleuze is going for. Worse, I don't totally care about the sections I rushed through.
I don't fully care because this book is seriously intertwined with classic philosophical problems, which I tend to find boring. I prefer political philosophy, science, and social psychology, all of which presuppose the world and care little for problems of metaphysics.
The beginning of Logic of Sense is primarily about semantics and semiotics, or the study of meaning and the study of sign process. Basically, he posits that the language is only understandable through sense. Shit... this is difficult to describe, but the "problem" of language is that none of the available explanations are sufficient. This is a little rough to explain, since I don't fully understand the problem nor the thousands of years of arguments attached to it. But basically, Deleuze argues that behind all language is "sense."
Sense is constructed. Sense is also not innate. Sense is constructed as we use language in the world, in real time. It is constructed in the middle realm between "the realm of ideas" and "the universe of things." A great deal of the book is devoted to how sense is constructed, but honestly, I'm not sure if I can explain any of it.
Sense is closely related to what Deleuze calls "events." Events, like sense, don't exist, but subsume. As I understand it, imagine a term like "my high school sweetheart." This makes sense but is it referring to me or to you? What if you or I didn't have a high school sweetheart? Well, the point is that the Event "my high school sweetheart" is the expression of what I said. It doesn't fully exist, but it can incorporate all of the things in the world that incorporate the term "my high school sweetheart" to you. That includes the blood and guts and cells and molecules and history that composes the person who is the sweetheart; that includes the time spent together; that includes everything that encompasses what you constitute "my high school sweetheart," which also can be your version of MY high school sweetheart.
An Event is the expressible, but not the definition. It encompasses the collection of stuff that is you which thinks of the high school sweetheart, the definition of the term (in this case "high school sweetheart"), and the structure of the language that allows terms to be used.
Roughly.
Then Deleuze goes into the paradoxes that establish Sense and the Event.
There's a cool thing about the Event. It brakes cause and effect. This is from the Stoics, who Deleuze claims prefigure Hume. Anyway, think of the world as a collection of stuff – atoms, histories, buildings, molecules, people, countries, etc. At one level, everything is just atoms. But there are things. And we recognize those things. I recognize myself, my friends, dogs, cats, authors, painters, elements, colors, countries on a map, etc. But those things aren't, on one level, the full story. Everything is composed of something else, so there is no Being. What is Being is the Event. That is, think of that high school sweetheart again. Let's say it is a she. Let's say her name is Indira (it's the first name that popped in my head, whatever). Indira is an Event. Indira exists, but really, she exists as a collection of atoms, histories, organs, her dog dying when she was five, Power Rangers, clothes, etc. On those granular scales, there is no Indira, just other stuff. All there is, on this level, is endless actions, ceaselessly intertwining. Think of all the atoms in the universe endlessly joining, branching, shifting, into new connotations: new stars, molecules, gases, creatures, rocks, etc. And all that next level stuff endlessly joins, branches, shifts into new connotations, and so on.
Well the Event is what allows us to differentiate. Think, on one hand is the depth of stuff. On the other hand are ideas. The stuff is real. The ideas are not. The Event allows us to organize the boundless abyss of stuff into concepts. Those concepts can be anything. "The Iraq war" is a concept, an Event. So is "Barrack Obama" and "the current president of France."
Back to cause and effect. The Event is the effect. The world of stuff is the cause. The two never really intertwine. That is, we give the world of stuff effects, rationales, meaning. The world of stuff is just churning away, an endlessly branching smashing of stuff. It is all cause. Effect only comes when we attribute a This-ness to some individuated Thing. So back to "my high school sweetheart." When you are going out; when you are really in-the-moment with your significant other, there is just Now. Just the world of stuff, which includes emotions of love, and images of your significant other, and smells of the pizza you're sharing and the grass you're sitting on, and the warmth of the sun and the feeling of your lover's fingers in yours. No effect. Just cause. Effect comes in when you give Sense to the whole thing, or turn what you are doing into an Event. As soon as you do that, the thing becomes a concept. You sort of think: Cause: with my high school sweetheart; Effect: I'm so happy. Or, years later: Cause: my high school sweetheart; Effect: ten years of therapy. See? No real cause and effect; effect comes from the Event and doesn't exist in the world. Sure, there is the you of now, ten years later, who has been going to ten years of therapy, but can you really say that one thing lead to another? Not really. Not when it comes down to it. But thinking about something turns it into an Event (because of the way Sense functions) and then you give the world of stuff meaning, effect, etc. Sort of.
And that is only one ramification of what he's saying.
Oh shit, this is getting long. And it will take forever to really explain everything I got out of this book...
Maybe I'll come back to it later.
But I will say that there is an endless amount of ramifications from these ideas. Ramifications that effect the idea of identity and ethics and knowledge.
And the later part of the book bored me to tears. Deleuze goes into psychoanalysis, which always bores me, and talks about how this idea of Sense and Event effects psychoanalysis and Freudian and Lacanian notions. Yawn. I just couldn't care and didn't spend much time with the end of the book.