^What you're doing is trying to turn this into some meta-discussion on what self-awareness is. That's all well and good, perhaps there are different ways one could define what self-awareness is.
For me in this thread, it's pretty straightforward. In biology, if we talk about self-awareness in animals, we need to make sure we're talking about the same thing and the solution is this standard mirror test. Although there are some variations of this test, it's pretty much standard in that it has the ability to recognize oneself in the mirror as the criteria for passing. Koko is one of several gorillas to pass such a test. It's also been passed by dolphins, a magpie and other apes.
When we talk about self-awareness and I mention this test, then I am using a definition of self-awareness as whatever it is that makes you pass this test. If you want to talk about self-awareness as something other than that, then chances are we're still talking, but no longer about the same thing and the discussion will suffer from misinformation and talking past eachother as a result. Saying something about when humans became self-aware becomes entirely pointless without a solid reference point as to what self-awareness means, so then we might as well kiss the discussion goodbye.
