It's kind of a beautiful turn of phrase, in that the filing cabinet is entirely superfluous, you can use almost any noun. "it’s a little like having two versions of a website’s sub sandwich — the AI agent can experiment freely with a development sandwich, but the production sandwich, which is the real thing that users interact with, is completely walled off".

"When you click a button on our website, a request is sent across the internet to our servers, it's a little like if a sockeye salmon was sent across the internet to our servers."