In the last twenty percent. Dealing with current information is practically impossible, and following a specification precisely is not much better: everything is an echo of what the model has learned, never a hundred percent reproduction. For many people that is fine, they could not deliver more than eighty percent themselves. If you operate in that last twenty percent, the added value is limited. One week the model wrote eighteen pages of praise about my platform, then tried to apply the principles it had just praised and fell short: it can describe a rigid core, it cannot hold one. Decay by AI is a real risk nobody talks about, so read everything the agent writes before it ships.