ghosts & other theories
David shares is theories on TV ghosts, shadow ghosts, etc.
When the dead attack you in your sleep ( sleep paralysis )
Have you ever woke up and found yourself pinned down?
Since decoupling, the temperature of the background radiation has dropped by a factor of roughly 1,100  due to the expansion of the universe. As the universe expands, the CMB photons are redshifted , causing them to decrease in energy. The temperature of this radiation stays inversely proportional to a parameter that describes the relative expansion of the universe over time, known as the scale length . The temperature T r of the CMB as a function of redshift, z , can be shown to be proportional to the temperature of the CMB as observed in the present day ( K or meV): 
Lord of the Flies (SparkNotes Literature Guide Series)