I like to see such free thought; it makes for a proper discussion.
Ghosts, real or not, are an unknown factor in the paranormal. Occurrences and unexplainable phenomenon definitely lend toward something being there, but we have no irrefutable physical proof (or else someone would be 1 million richer)...
So let us start with the skeptics curve, which is getting stronger. While investigators and those seeking alike are securing greater technology and methods of collecting data and anomalies we run into the double edged sword that is technical innovation. With every new piece of equipment, or every new method of research, we see another photo app or video editing software become available with ease of use out of the box. This software is turning the average Joe into a poltergeist paparazzi with little to no difficulty, and in extreme quality. So as we get better at looking legitimately, they get better at fabricating - so the skeptics are stuck being torn mostly on the question of "do I trust these people" and even if they do, it's still down to the sketchy images or sounds that are usually captured, and mass populated and propagated. So all in all, can we really trust the source, and even if we can - why should we.
To the believer's thought process, sadly more often than not - it's a simple "It's real Bro"... But some actually take the time to look into what they believe.
The Investigators curve, well -This is where the fun starts. Have to be both a skeptic and a believer in many senses to make this work, but those like me - More skeptic than not, tend to keep things credible best we can. The theories are what we're interested, sometimes it is legitimate concepts, other times simple folklore... This is where the question must be answered from. No "ghosts aren't real" or "It's real bro" - but a few of the ideas as to why.
Addressed earlier was the idea that traumatic, or violent, death will result in a severed spirit, well why? Is this really because of the "unfinished business" or "punishment/vengeance" or could it be because the body wasn't ready to die? The body, as it dies of old age, organ failure, and even disease or illness, will know it's death is imminent and begin to release endorphins to help to ease they body into a lull as it dies - along with other chemical transmitters that signal the organs to begin to shut down. The neurological patterns of a dying person are almost akin to the final movement of a symphony. Everything is planned, tuned, and happening as if conducted and predetermined by the body. So, sliding into the spiritual plane here - we would have to assume that a "soul" (not a spirit, different terms commonly bundled as that "spooky stuff") would ascend, dissipate, or otherwise at this point cease to be. So, a calm, planned death... (Even if painful or uncomfortable for the person dying, the body was prepared) - They drift off and the energy dissipates or is expended through the process of dying. Now when that process is started prematurely, or fails to start at all due to say the impact of a bullet, could less energy be expended, if any, or maybe without the transition there is a sudden dispersal of the remaining energy and it results in some form of "entity"....
But that's one look at it; some consider the Spirit and Soul two separate parts of the same being. The soul being the "battery" and the Spirit being the conduits holding the charge... They believe that when the body dies normally, similarly to the above, the charge is removed to the soul and the soul ascends - In the case of traumatic death, part of the soul fragments and more or less - the lights stay on (even when not in the body) - and this is a spirit/"ghost" with minimal memories and limited understanding...
But most believe that ghosts are simply the imagination seeking some answer to life after death, those that are religious often fall back on some form of paradise, while those that aren't often just figure - dirt is dirt. I will avoid the religious views simply because I will likely misrepresent one or more and I'd rather those be addressed based on the questioners belief at their own leisure. I will suggest looking into the pre-coptic Egyptian views though - interesting reading.
To hit a few of the other things I caught from the messages. -
No, I won't send you my money. Life may not have a great culminating point - but I still plan to enjoy every second I can...
Not everything that dies would become a "ghost" - wouldn't make sense as was mentioned. If that were the case, we'd never need air conditioning... But, then again - we don't know I suppose.
I kind of like the EM theory, maybe it's all connected and we perceive it all as we see fit...
We won't really know until someone has captured one and questioned it...(or reports back from the other side)
&endrambling
"Ghosts" are People too - just because they don't have a body anymore, let's call it Corporeally Challenged, it doesn't mean they don't deserve some respect or that they have to be classified as an entity of either divine evil or divine good. If they were a douche in life, they'll be a douche after life too.