Again, I disagree. Cults can't form around anything. They can only form around issues that would make them social or intellectual outcasts. And in a world in which there were poorly hidden aliens, too many intelligent people would be of the opinion that there are poorly hidden aliens, and no such cult could arise.

But the more important point is... IF I start to think that there are poorly hidden aliens, that could be due to one of two reasons: either because I have reasonable evidence for their existence, or because I'm being influenced by some sort of bias.

The existence of cults around the issue shows that those biases exist and are reasonably common, and thus are a more likely reason for my belief than the alternative of actual aliens.

That's a hard question to answer without defining the terms better.

I grew up among a lot of self-identified religious people. Using as my test for the left-side "believe in God" the willingness to arrange at least some superficial aspects of one's life around those beliefs (e.g., where one lives, sends children to school, eats, etc.), and using as my test for the right-side "believe in God" the willingness to die rather than violate what they understood to be God's law, I'd say I'm .95 confident that fewer than five percent of the folks with LH beliefs had RH beliefs, and .75 confident that fewer than 1one percent did.

I believe the key point of this article is very wrong.

I urge you to either show some evidence to support your statements, or retract them.

There are huge differences in personality from person to person.

When I kick a vending machine, it IS because I have an angry personality. Even when I kick the vending machine because the bus was late, the train was early, my report is overdue, and now the damned vending machine has eaten my lunch money for the second day in a row... it's still because of my angry personality, and it's a well proven fact that many other people would not do that in the same situation. There are whole countries full of people that would just feel sad, or blame themselves, or just let it go, or get only a little angry inside.

This has been well studied, and almost everyone who's studied it honestly has arrived at the conclusion that people do have different personalities, which account for their behaviour more than the events do, and which are the best predictor of their future behaviour.

So, I'm going to take (or at least emphasise) the opposite position... "We tend to see far too little correspondence between others' actions and personalities, when in reality that's the main cause.... <Genetics rather than environment and all that stuff.>"

I'm assuming it's something about how the assertions in the story are "the sky is blue" and "the sky is green" instead of "the spectrum of the light from the sky peaks at around 460 nm" and "the spectrum of the light from the sky peaks at around 540 nm", since there can be an honest cross-cultural confusion between just what real-world colors "green" and "blue" translated to the respective languages correspond to.

What about if the parable had red instead of green then? There are no human cultures that conflate red and blue according to the cultural color term chart.

No, blue is what's perceived as blue. There are problems with physical definitions because of an endless list of exceptions involving perceptual disorders, optical illusions, lighting conditions, etc. etc. etc. People worked on this problem, and there is no objective definition of color that I am aware of.