Types of Ghosts


Ghosts can be broadly divided into two groups, fake and real. Neil deGrasse Tyson estimates the possibility that we are living in a computer simulation at 50-50. So that there may be fake ghosts in a real world if he is wrong and four, or more of the real kind as a result of errors in a predictable simulation. Most people will agree that a real ghost would require energy and a simulation could be observed, measured and tested.