What if the strange and unexplained isn’t merely visiting our world—but coexisting with it, layered within dimensions we simply cannot see?

This haunting possibility lies at the heart of the theories proposed by Bernard Carr, a professor of mathematics and astronomy at Queen Mary University of London. Carr, who blends rigorous science with a curiosity for the unknown, suggests that paranormal entities may not be figments of imagination or hallucinations—but real phenomena from higher dimensions that brush against our reality. And according to him, the bridge between those dimensions and our own could be something we carry with us every day: our consciousness.

Most of us were taught to think in terms of four dimensions: three of space, one of time. That was Einstein’s model, and for many, it still defines how we imagine the universe. But modern theoretical physics—particularly string theory—has expanded that idea, positing up to eleven dimensions curled tightly within the fabric of existence. These extra dimensions are often dismissed as inaccessible or purely mathematical. But Carr proposes something more radical: that some of these hidden realms are not only accessible, but already inhabited—by things we struggle to understand.

And we’re not just observers in this model. We’re participants.

Carr describes these dimensions as existing in a kind of hierarchy, like a staircase of reality. Humanity, in his view, is just now standing on the bottom step, peering upward. What lies above may contain what we have long called ghosts, spirits, angels, or shadow beings. And it’s not that these beings travel from “there” to “here”—they’ve been here all along, moving in their own dimensional space, overlapping ours in strange and inconsistent ways.

In one of his more provocative conference presentations, Carr suggested that the key to understanding paranormal phenomena may lie not in the physical evidence, but in the relationship between mind and matter. For centuries, philosophers have debated the nature of reality. Are thoughts just internal reflections, or do they connect to something greater? Carr proposes a third option—that consciousness itself may be a dimensional structure, capable of interacting with non-material realms.

This isn’t the airy speculation of science fiction. Carr’s background is grounded in serious astrophysics; he worked alongside Stephen Hawking and has written extensively on black holes and cosmology. Yet he openly critiques mainstream science for its reluctance to tackle consciousness as a legitimate part of the physical universe. He believes that psychic phenomena—such as telepathy, remote viewing, or even out-of-body experiences—may not be paranormal at all. Instead, they might be extra-normal: ordinary events occurring across dimensions we haven’t yet learned to measure.

Think of a dream that feels too vivid. A presence you sense but cannot explain. An encounter that leaves you chilled to the bone, though there’s no one in the room. These experiences have often been dismissed as tricks of the mind. But what if the mind is the only organ capable of sensing what exists just beyond the veil?

This theory challenges the foundations of physics, psychology, and philosophy all at once. If Carr is correct, we’ve been trying to build a Theory of Everything while ignoring one of the biggest pieces of the puzzle. How can we explain the universe if we leave out the only thing capable of perceiving it?

It’s no coincidence that stories of strange encounters often happen when people are in altered states—sleeping, meditating, near death, or emotionally heightened. Carr’s ideas suggest that these states might temporarily shift our consciousness into alignment with higher dimensions, like tuning a radio slightly off the standard frequency and catching an eerie voice from another station.

And so, we are left with questions that seem both ancient and brand new: Is consciousness a cosmic antenna? Are paranormal events echoes of another reality bleeding into ours? Could our dreams be brief visits to a world just a breath away?

The science isn’t settled—but maybe that’s the point. Carr’s perspective opens the door to a kind of scientific mysticism, where mind and matter, spirit and space, can all be part of the same vast and strange system. A system we’re only beginning to glimpse.

We may not have the instruments to map these dimensions yet. But as our understanding of consciousness grows, we might find that the things we once called ghosts, or visions, or otherworldly beings, are not so far away. Perhaps they are neighbors—just one floor up on that cosmic staircase.

And if that’s true, what else might be watching, waiting, or simply living alongside us… unseen?