I'm Guilherme Raul Cosentino Ferreira. I work on validation systems for autonomous vehicle perception at NVIDIA. Before that, I spent three years at Stellantis building simulation pipelines for ADAS and writing HVAC embedded software. I began an MS in Computer Science specializing in AI at Georgia Tech, but paused the program to join NVIDIA.
I grew up in Recife, Brazil. I now live in Sunnyvale, California.
The question I keep coming back to is deceptively simple: what does it mean to understand something?
I work with perception systems that classify the world in real time. The machine says "that is a pedestrian," and sometimes it is right. Sometimes it is a fire hydrant. The system processes the scene, but does it understand the scene? Where is the line between recognition, prediction, representation, and understanding? I don't think that line is settled.
That question pulls me toward linguistics, natural language processing, information theory, measurement theory, and consciousness. Language is not just a sequence of symbols; it carries meaning through context, history, intention, and shared reality. Intelligence is not just performance on a benchmark; it is the ability to model the world, act within it, and reflect on the process.
It also connects to critical consciousness, especially the work of Paulo Freire, who also came from Recife. Real understanding is not just receiving information. It requires becoming aware of the systems you are embedded in. A person, institution, or machine that cannot reflect on its own process is operating, but not fully understanding.
The deeper version of the question is even harder. We don't know the exact moment chemistry became biology. Somewhere between self-replicating molecules and the first cell, matter started caring about its own continuation. That transition — from things that happen to things that matter to the thing they are happening to — feels like the beginning of cognition.
That is the line I keep trying to locate: the boundary between processing information and understanding it.
Related: Codeine Cake and the Chinese Room