"processing" is something people are more comfortable as a description of what computers do, as it sounds more rote and mechanical. Saying the LLM "understands" leads to an uninteresting rehash of a philosophical debate on what it means to understand things, and whether or not an LLM can understand things. I don't think we have the language to properly describe what LLMs can and cannot do, and our words that we use to describe human intelligence; thinking, reasoning, grokking, understanding; they fall short on describing this new thing that's come into being. So in saying human words, I'm saying understanding is something we ascribe to a human, not that there are words that aren't from humans.