My guess for why they chose the letter g is that gnu can be phonetically the same as just nu, but keeps people from interpreting the name of the project as a dumb spelling of "new".
Its less about naked baby pictures and more about a network of internet connected cameras, which we know that government agencies access, being absolutely everywhere.
I saw some videos of dogs using those buttons that will say human words when pressed. Obviously the popular videos are from abnormally intelligent dogs but my takeaway was that animals are incredibly perceptive and aware. They understand a lot of what you're trying to communicate, unless it's some abstract human nonsense.
There's certainly a lot to discuss, relative to experimental design and ethics. Peer review and good design hopefully minimize the clearly undesirable scenarios you describe as well as other subtle sources of error.
I was really just trying to explain what we're looking at on op's graph.
My limited knowledge on this subject:
The z-score is how many standard deviations you are from the mean.
In statistical analysis, things are often evaluated against a p (probability) of 0.05 (or 5%), which also corresponds to a z-score of 1.96 (or roughly 2).
So, when you're looking at your data, things with a z score >2 or <2 would correspond to findings that are "statistically significant," in that you're at least 95% sure that your findings aren't due to random chance.
As others here have pointed out, z-scores closer to 0 would correspond to findings where they couldn't be confident that whatever was being tested was any different than the control, akin to a boring paper which wouldn't be published. "We tried some stuff but idk, didn't seem to make a difference." But it could also make for an interesting paper, "We tried putting healing crystals above cancer patients but it didn't seem to make any difference."
God damn, these fuckers are only emboldened.
"Do what I say or I'll shoot you in the face."