"We call them that. Algorithms. We have a great many, built up over decades. I doubt anyone today knows quite how they work, in any given instance." She looked at the rental now, her expression changing. "Someone modeled that peripheral, rather romantically, after Fitz-David Wu. I doubt you’d know him. Arguably the best Shakespearean actor of his day. His mother was quite a good friend of mine. Those eyes were an afterthought, of course, later regretted. Not so easily reversible, in those days."