[jfengel]

You shouldn't make any decisions on it, but it's striking that it works at all. It would be interesting to know why.

I have my suspicions about that, which are that people tend to mimic those they see around them. Which could well extend to how they hold their faces unconsciously. It would be not unlike the way we develop similar accents to those around us, just with different muscles. But that's a hypothesis that would have to be tested.

Sadly, if it holds up, it almost certainly would lead to people making real world decisions.

[Applejinx]

I think people are already making those real world decisions, with or without being able to automate the process. The real implication here is that political ideology owes more to raw emotional biases than it does to analysis and introspection. It echoes a person's general attitude toward life in the absence of specifics. I would say this is not a revolutionary observation, but it's a confirmation through experimental means.