I firmly believe that devices have been built which can transmit data using quantum entaglement (changing spins in digital sequences?) and that the very moment those devices came into existence, certain labs have been privy to communication from the future.
Depending on one's view of time/multiple timelines one has to assume that those in the future would purposely hold back on certain details in order to ensure that nothing communicated would endanger the future communicant's own eventual births.
For he comes, the human child,
To the waters and the wild
With a faery, hand in hand,
For the world's more full of weirdness than he can understand.