apparently angelic beings try to appear to be, they are instead looking ahead, seeing a possible way that things could come about, and then ensuring they happen that way? They knew there was a possibility that the sun would fry the Earth with a solar flare. Let's not get into how ridiculous that is, for starters. But since that flare was caused through a series of quantum events, there was always a chance it would happen earlier, or later, or aim in a different direction. Any number of things could have happened differently. Yet, these Watchers apparently let the holocaust of Earth happen, rather than prevent it, and they only took a small sample of genetic sources off the planet. With a knowledge of quantum mechanics that advanced, they could have stopped the solar flare from hitting Earth in the first place. Instead, they apparently decided that the way they predicted was the only way things could happen, and forced it to happen that way. Nice job breaking the Earth, 'Angels'. Or maybe they're not what they seem to be.
The prophecy and the arrival of The Watchers are completely unrelated.I didn't check The Other Wiki, so I don't know whether this was already denied by Word of God. Now, let's come to the point. The girl prophesied the shit will hit the fan, and where to go to get saved (possibly knowing it'll only help her granddaughter and new buddy of her). Now jump forward these forty or how many years. Some aliens discover Sun is just about to go KABOOM: "Holy sh*t, what do we do!?" "Well, we ought to help these creatures... Find them a nice new planet or whatnot" "How? We don't have enough ships!" (for whichever reason) "So let's just take, like, some of their younglings, and yeah...".
There is no free willThe story takes place in a universe like Dr. Manhattan's. Knowing things in advance cannot change things. Nicholas Cage's character knows about 2 disasters in advance but is unable to change the number of deaths in spite of the fact that his disruptive presence on the train should have had some random effects on who lived and who died. The angels/aliens did nothing because they could do nothing: they can see their strings. We are all just playing out roles established at the beginning of time, and all we can do is accept. Maktub: it is written.
The Watchers are actually The Strangers.Curious about humanity and eager to see if they can be used as part of their experiments, they casually manipulate events to see how humanity will react. And when it all starts going south, they take the most malleable subjects with them- along with the ever-mysterious Dr Schreber and as many examples of human technology and culture they can gather in time- and abandon the rest. The vision of Caleb and Abby running through the field towards a tree is just one last dream on their part before the Strangers erase their memories and begin experimenting.
The sheet of paper is an older version of the Death Note, and the Watchers are it's ShinigamiCome on, someone writes on paper and people die as dictated on the paper? Can't be a coincidence.
The solar flare was stopped by the Incubators.The Watchers were going to do the Adam and Eve Plot and the entire movie was them showing other aliens what will happen to Earth and what their plan is. They soon happen to show it to the Incubators, which happens to be a bittersweet thing. The Incubators decide to avert this by creating the Puella Magis, using their despair to protect the Earth from the flare. It was a success and the Watchers allowed them to protect the Earth from other threats such as the Heat Death.
The Aliens are really the trans-human robots from A.I.: Artificial Intelligence.After the death of David, the robots realize there are simply not enough specimens - robotic or human - to teach them about humanity. Searching their research, they devote thousands of years to the idea of alternate universes, and find a way to cross over to a time-stream where humanity still exists. They succeed - only to discover that the sun in this universe is outputting massive flares that will eventually destroy humanity. They know that Humans Are the Real Monsters from their own timeline; therefore they are unwilling to save all humans. However, they decide that saving a small population of children to seed a habitable world, will allow them to study humanity without the risk of being overrun by possibly robo-phobic humans. Hence the actions that seem scary and horrifying to the humans - they have their own agenda and saving all of humanity is not one of them. And the "accidents" that occur within the 50 years of the movie is their way of "studying" humanity.
The kids that get shown the dates of the disasters are Seers of Doom.Basically, everything is Sburb, minus the game element, and they're all on their way to becoming god tier.