✦ The science behind… · by Wooly the scientist
Ghosts, Presences & Energies
What science really says about the paranormal — honestly, and without contempt.
A presence in an empty room. A loved one who's gone, felt somehow close. A space that seems “lived in” when no one is there. Almost everyone has known a moment like this — and if you have, let this be the first thing you hear: what you felt was real, and it deserves to be taken seriously. Taking it seriously is exactly why we look closely — and gently — at what the heart and the brain move through in those moments. Here's what science says, offered with tenderness, and without ever taking away the beauty of what you felt.
The feeling of a “presence” is real — and it's been reproduced
The unmistakable sense that “someone is here” when no one is has been created in the lab. Neuroscientist Olaf Blanke (2014) induced a “felt presence” using a robot that delayed people's own touch by a fraction of a second — the brain read its own body as another being. Sleep paralysis reliably produces vivid presence-and-intruder sensations too.
So the felt presence is genuine — but it's generated inside the brain, not proof of an external entity standing beside you.
This means your experience isn't “crazy” or imagined. It's a real, documented human perception — and understanding it can make it less frightening.
Why old houses feel haunted
Several physical causes stack up. Infrasound — sound too low to hear, around 19 Hz — can cause unease, shivers and a feeling of a presence (Vic Tandy's “ghost in the machine,” 1998). Add cold drafts, creaks, poor light, and even carbon monoxide (which literally causes hallucinations), and a room can feel deeply “wrong.”
“Haunted” is a story we lay over these very real physical and physiological causes.
That doesn't make the atmosphere less powerful — it makes it explainable, and honestly a little more fascinating: the house isn't cursed, it's whispering in frequencies you can't consciously hear.
Sensing a departed loved one
This one I hold gently.
Feeling, hearing or even seeing someone you've lost is COMMON and normal. In a landmark study (Rees, 1971, BMJ), a large share of grieving people reported exactly these experiences — and they're understood as a natural part of grief, not a sign of anything wrong. Pareidolia (the brain finding faces and meaning in noise, the same wiring behind seeing signs) plays a role too.
These moments are real and precious to the griever — but studied as part of how humans mourn, not as verified contact from beyond.
So if you've felt a lost loved one near, you are in vast, normal, tender company. It's a documented way the human heart stays bonded to who it loves.
What about mediums and evidence?
Careful, controlled tests of psychic and mediumship claims have not produced reliable, repeatable results. James Randi's famous Million Dollar Challenge stood for years and was never won. Much of what feels like an uncanny “hit” is explained by cold reading — skilled, often unconscious, use of cues and general statements.
Saying the evidence isn't there isn't contempt — it's honesty. Extraordinary claims need solid, repeatable proof, and so far it hasn't appeared.
Skepticism and compassion aren't enemies. You can honour the comfort a reading brings someone and stay honest about what's been demonstrated.
So is it all “nothing”? Not at all
The experiences are real. The comfort is real. Ritual, remembrance and talking to those we've lost have documented psychological value — the “continuing bonds” view of grief (Klass, 1996) sees the ongoing relationship as healthy, not a failure to “move on.”
What's unproven is the external, supernatural cause — not the human meaning, which is very much real.
You can light the candle, speak to them, feel them near — and let it be a true, healthy act of love and memory. It doesn't have to be a ghost to matter deeply.
Presence, honestly
The presences we feel are real experiences with real, human explanations — a brain wired for company and meaning, a world humming in frequencies we don't consciously hear, a heart that keeps loving. That's not a smaller story than ghosts. It's a truer, kinder one: you're not haunted, you're human — and the love you still feel is the most real thing in the room. ✦
Sources
- Olaf Blanke et al., Current Biology (2014) — induction en laboratoire d’un « sentiment de présence » par un robot introduisant un décalage tactile.
- Vic Tandy & Tony Lawrence, « Ghosts in the machine », Journal of the Society for Psychical Research (1998) — l’infrason (~19 Hz) provoque malaise et impression de présence.
- W. Dewi Rees, « The hallucinations of widowhood », British Medical Journal (1971) — expériences sensorielles du deuil, très fréquentes et normales.
- Klass, Silverman & Nickman, Continuing Bonds (1996) — le lien continu avec le défunt comme part saine du deuil.
- James Randi Educational Foundation — « Million Dollar Challenge » : aucun pouvoir paranormal jamais démontré en conditions contrôlées.
- Paréidolie & apophénie — tendance du cerveau à voir visages et motifs dans le bruit (voir aussi la littérature sur l’intoxication au monoxyde de carbone et les hallucinations).
A documentary article, for reflection. It reports established science and clearly names what is belief or interpretation.