It is literally impossible for someone to understand what they're "coding" in a day if 10,000 lines (!!) just got farted out of some codegen tools. I cannot believe anyone would say this responsibly with a straight face.
They're not coding, they're not vibe coding, they're asking for the code to an LLM.
When people say "I did this" showing something they did with AI, the reality is "I asked an AI for this". Okay, not every time, but something on this scale would, they don't even know what those 10K lines of code do, they asked and received.