Why do some people see ghosts and other people don't?

Answer 1

No one actually sees ghosts. There are several reasons people say they do. These include lying, visual and auditory pareidolia, mistakes, hallucinating and hoaxing among others. Ghosts have never been proven to exist, so it is intellectually responsible and prudent to conclude they do not exist.

In order to make sense of our world, we must use the scientific method, not spooky stories, opinions, hoaxes or outright lies by people who need attention or need to feel special. Other believers may be uneducated, superstitious or just too young and naive.

The Scientific method refers to a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. To be termed scientific, a method of inquiry must be based on gathering observable, empirical and measurable evidence subject to specific principles of reasoning. A scientific method consists of the collection of data through observation and experimentation, and the formulation and testing of hypotheses.

Scientific researchers propose hypotheses as explanations of phenomena, and design experimental studies to test these hypotheses. These steps must be repeatable in order to dependably predict any future results. Theories that encompass wider domains of inquiry may bind many independently derived hypotheses together in a coherent, supportive structure. This in turn may help form new hypotheses or place groups of hypotheses into context.

Among other facets shared by the various fields of inquiry is the conviction that the process must be objective to reduce biased interpretations of the results. Another basic expectation is to document, archive and share all data and methodology so they are available for careful scrutiny by other scientists, thereby allowing other researchers the opportunity to verify results by attempting to reproduce them. This practice, called full disclosure, also allows statistical measures of the reliability of these data to be established.

In summation: For something to exist it has to be proven. This is how we escaped the dark ages - using reason and logic.So, for now, ghosts do not exist.

Or, from another point of view:

The people who believe in ghosts and see them are more open-minded and accepting of the unexplained,more sensitive.The people who don't see ghosts typically don't believe in them,and are less open-minded than those who do.It also depends on how strong a ghost is,weaker ones are only seen by believers or only felt (like cold spots and people feeling like they're not alone) but stronger ghosts can even interact with people,like moving objects and being visible.

Or, as I believe, it is the individual's mental/psychic sensitivity, rather than their belief. For example, my husband has seen this ghost of a girl in our house. His mother and father have seen her as well, but try as I might, I have never seen her. I fully believe in ghosts, because quite a few of my family members have seen them. I know they are real. I have no doubt about that. But apparently my brain is not as sensitive as others to perceiving ghosts/spirits. I hope I helped.