A friend and I are arguing over ghosts.
I think it’s akin to astrology, homeopathy and palm reading. He says there’s “convincing “ evidence for its existence. He also took up company time to make a meme to illustrate our relative positions. (See image)
(To be fair, I’m also on the clock right now)
What do you think?


Science has never in the history of science reliably shown a single interaction between physical entities and any sort of non-physical force. The only way ghosts could be real is if you redefined the term “ghost” to the point of breaking, like saying that the memory of a person is a ghost.
Plus, it fails the smell test in a million ways. What makes a ghost exist? Why aren’t we positively lousy with ghosts? Are there rules? What would they be and what mechanism is there to both quantify and effect them? Why do ghosts follow the rotation and revolution of the earth but otherwise aren’t physically bound? How can one have any sort of cognition? If a ghost does, how can it perceive anything without intercepting photons or other physical phenomena? If there are ghosts and somehow they have cognition and perception, are we obligated to leave Netflix on when we leave for work?
Technically, the moment science would show an interaction between physical entities and something else, that something else would immediately be classified as a physical entity. In a very real sense, the discovery of radioactivity involved physical entities being found to interact with an as-yet unknown, invisible, intangible force.
If ghosts existed, the same would happen as with radioactivity. They would be researched, hypotheses on their nature would be tested, and a scientific theory would arise, and then they would be a part of the “physical world” too. And then all the mystics would be bored with ghosts because they are just incorporeal noospheric echoes of old people, as boring as neurology or biochemistry or stellar fusion.
If a bunch of people were going around saying I got this weird burn on my skin after holding this rock for a while, scientists would have discovered radioactivity a lot sooner.
There are a bunch of people going around claiming to have interacted with ghosts, and we’ve got bupkis.
That reminds me of this meme:
I found it here after an internet search trying to find it again, but I’m not sure if it is the original source:
https://www.reddit.com/r/Cryptozoology/comments/1c7btq9/ill_just_leave_this_here/
The indigenous Australians, the Mirarr people, identified an area in Northern Australia as sickness country which was very coincident with a high concentration of uranium.
They just avoided the area instead of poking it
https://d28rz98at9flks.cloudfront.net/145214/145214_00_0.pdf
Aw man. The northern tip of Australia has the cleanest air in the entire world. That data is from pre-y2k
Not sure about that, you might be thinking of the Southern tip. Indonesia often conducts burn offs with a lot of wind blowing smoke over Australia as well as cultural burning conducted by the indigenous in the region. I remember seeing the haze growing up and walking through the burnt country at the start of the dry.
Fucking magnets,
How do they work?
https://www.youtube.com/watch?v=_-agl0pOQfs
Magnetism is a physical force, like gravity. Measurable and consistent.
You keep saying “physical force”…
That’s not a real term in physics.
The only possible explanation, is you mean any force that is already explained by physics, is that what you mean?
Because that would be the same as insisting we know everything, which no one who knows anything about physics would ever try to claim.
So…
What exactly do you mean when you keep saying “physical forces”?
One of the definitions of “physical” in the American Heritage Dictionary is:
I mean there’s no way to go from immeasurable to measurable except in scale, and anywhere north of quantum scale, physics has been reliably predictable and measurable. Ghosts’ purported impact is on a scale well above that which is unexplained.
I think you could rationally explore ghosts in the “radically redefining” them arena. Ghosts could rationally exist as an artifact of your mind, and saying that is not the same thing as saying they don’t exist. Hallucinations exist. They aren’t real, but they exist. Ghosts could rationally exist in the exactly same way, as processes in our own heads. It’s when you start saying they interact with the world in a way outside people’s heads that you can’t really reconcile.