Reasonable, but not necessarily true. 1. We don't understand what the motivations of our own AI are, let alone "typical" alien AI 2. Expanding AI might be bet

Reasonable, but not necessarily true. 1. We don't understand what the motivations of our own AI are, let alone "typical" alien AI 2. Expanding AI might be better at and/or more invested in hiding itself. It probably has no need for wasteful communications, for example.