 that we've gone through over the past four or five years now of starting to deploy this technology and learn has taught us so much. And we really weren't in a position three, four years ago to patch issues. When there was an issue with GPT-3, we would sort of patch it in the way that GPT-3 was deployed with filters, with sort of non-model level interventions. And now we're starting to mature from that. We're actually able to do model level interventions. And it is definitely the case that GPT-4 itself