"I have heard footsteps" is a super common experience, I'm sure I've even had that experience once or twice.
This is a classic example of what I mean, there's an assumption in here that is nearly invisible because of the way we think. What folks heard was a series of sounds that seemed like they moved from one area to another. They interpreted those as the sounds of footsteps. Nothing wrong with that assumption usually, it's based on information people have parsed before, it will be accurate most of the time. It's "this is like that, therefore it is probably that". Good for day to day. But when people parse that information in an unusual context, it becomes less reliable.
Someone heard some sounds that reminded them of a thing they'd heard before, in a place that thing should not have been.
That may be the sum total of the facts in play. But because that is a story without a narrative, without an explanation, people fill in the gaps. And from that a noise becomes a footstep, and because a "footstep" must have a foot, a noise now becomes a ghost. But we haven't actually confirmed it's a footstep. And since the event is in the past, we can't go back and be sure what it was.
We don't know. We can't know.
The human mind has a tendency to take "I don't know" and then translate it to "therefore I DO know, and it MUST be X".
Like, I could tell you about stuff I've seen that you would say "oh, you saw a spaceship" and I would say "no, I saw SOMETHING hat appeared to be airborne, and I have no way of finding out what it was". Even if we establish it wasn't a random minor hallucination (a thing that happens to many people because brains are weird and sometimes just glitch), we'd still have to rule out all the possible things it could have been (planes, fireworks, drones, weather phenomena, animals, etc). And if we established it was none of those things (already impossible), we'd have to rule out all he other impossible things it could have been. Why would it have been aliens and not angels for example? Why not ghosts? Why not fairies?
"I have seen odd stuff" can be a complete statement. To say more is me inventing where I cannot verify. It's me making up a story to give that experience narrative and explanation. And of course, I'm happy to make up stories in lots of ways every day. I make up stories about how the friends I talk to think about me, because I can't know what they actually think. I make up stories about how the world is working around me because I can't actually sit and monitor every interaction at a micro level to be sure. But there is a difference to me between those stories, and the ones that if true would fundamentally change the nature of the world. Ghosts are not a passive belief. You can't believe in them without also believing in other things. And that web of beliefs has knock-on effects to your thinking overall.
edit: and none of this is to say "ghosts/aliens/bigfoot don't exist", it's to say "that is very far down the list of things that could explain these experiences". It's the horses not zebras thing.
I find this mentality to be so dismissive and borderline offensive.
You are taking the experiences that people have had--in this case, you mention my specific incidents, therefore I am compelled to reply--and discrediting them under the notion that I am not cognizant of what I heard or have seen.
Now again, I have a very analytical mind, I look for the horses, and I am open to rational explanations.
But when the attic I refer to is direct above the bedroom I am sitting in, and I am home alone, and I hear movement, including floor creaking, and independent thuds, and those thuds go from the right side of the room to the left in rhythmic step--I either have a person living in my attic, or...? Never heard it before, have not heard it since.
Again, in this house that I type this post from, have had things on two separate occasions whiz past me and at an accelerated rate, and hit the wall behind where I am standing. And on the one occasion, I turn in time to see it coming. Straight line, through the air. I'm certainly not lying about this experience. My brain didn't glitch. And there is no Earthly explanation for this. There was no wind, there was no person, there was no animal, there was no magnetic shift that was noted by a scientist, there was no imagination. It happened and my reactions was "Huh. What the fuck? That was weird". It was an experience. Now...was it a ghost, the spirit of a human being, a demon?
There is no way to prove THAT. But there is also no way to prove that it wasn't.
I guess my issue here is in your approach. The wording of you response and mindset is, as I've said, dismissive and insulting. Not only to me--again, since decided to single out my expeeriences--but to anyone that's had them and shared their stories.
This is the reason people do NOT share them, because of people like you and yohr approach to addressing them.
My wife is genius level intelligent. Has her Master's, multiple degrees, is one of the most level-headed people I know, calm and cool under pressure, again, and as I've mentioned, a highly rated and highly accredited medical professional, and aside from all of that, a skeptic. Are you going to tell her that her shared experiences are figments of her imagination? That she had a brain glitch? That she simply "Filled in the space to make it logical in her mind"?
I'm sure you would.