[Milk]

When I saw the statue first thing that came to mind.
My theory of the plot that answers some of those questions all at once.


possible spoiler from the last episode of the season:











The 4 toes statue suggests that the island they are on might be Atlantis or something similiar. Which might explain the mysterious magnetic source as well as the black cloud guardian, its some advanced technology from the past/ or an offshoot of humanity , or ugh aliens or whatever atlantis means in regards to this story. Maybe the Dharma initiative people (who are the others) discovered some technology from atlantis that could destroy the Earth on the island. Their plan is to reseed the Earth after causing general humankind to be destroyed and then rebuild it, to do so they want to test everyone on island to see if they are good or evil, hence all the testing, and mind games, and deception and spying.
One of the products of the Dharma initiative could also have been isolating the 'good' and 'evil' gene or something similiar as a virus. I think there will be some technology that the dharma group has relating good and evil, I mean like for instance isolating the 'evil' gene this is why they are the 'good' guys their intentions seem altruistic, to save humanity--by destroying it. Its obvious morality and technology will combine somehow literally.