Its not the same at all. Llm is big yes and thats part of it. But llm is small compared to equivalent performance machine with something like ngram statistical models. You'd need the whole universe. Or something prohibitive like that. And itd still be worse. People don't like it but LLMs 'understand' texts in a very real meaning of the word. Because that's the most compressive way to do the task it's trained to. Is it the same as human understanding? Most likely not, but that complain is cheating.