The Chinese Room, created by philosopher John Searle in 1980, is a famous thought experiment about understanding. It goes something like this.

There's a room, completely sealed off, with a person inside who speaks only English and knows absolutely nothing about Chinese. This person has a massive book filled with instructions, sort of like a giant manual or rulebook. The book tells them exactly how to handle Chinese symbols, but it's all about matching shapes and patterns, not about what the symbols mean.

Outside the room, native Chinese speakers slide slips of paper under the door with questions written in Chinese characters. The person inside takes these symbols, looks them up in the rulebook, and follows the steps to produce a response. They might copy certain symbols, rearrange them, or combine them based on the rules. Then, they slide back a perfect, grammatically correct answer in Chinese.

From the perspective of the people outside, it looks like the room understands Chinese perfectly. The questions get intelligent, appropriate replies, as if there's a fluent speaker inside. The person in the room has no clue what any of it means, though. They're just manipulating symbols blindly, like following a recipe without tasting the food. They don't comprehend the questions or the answers at all.

Searle's point is that this depicts how computers work. If you think more closely about Large Language Models (LLMs) like Chat-GPT or Grok, this is also how they work. They are just mathematical models that predict what the next word should be, with very high accuracy. LLMs do not think. They are not conscious. They don't have understanding. That's what Searle's thought experiment shows.

Let's flip the perspective. You do think. You are conscious. You have understanding. Can you then be a mere biological machine? Or does it mean you must have a soul?