is it true that there is a poket universe the size of an atom?
like if someone shrunk to that size(even though its not possible)
if they shrink to the size smaller than an atom you find your self in a pocket universe?
There was an old philosophical argument (but not a scientific one) that said each atom was a miniature solar system with the nucleus as a star and the electrons as planets. That was trivial to disprove at the time and total gibberish now.
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Graffiti outside Latin class.
Sed quis custodiet ipsos custodes?
A juvenal prank.
“There is an idea – strange, haunting, evocative – one of the most exquisite conjectures in science or religion. It is entirely undemonstrated; it may never be proved. But it stirs the blood. There is, we are told, an infinite hierarchy of universes, so that an elementary particle, such as an electron, in our universe, would if penetrated, reveal itself to be an entire closed universe. Within it, organized into the local equivalent of galaxies and smaller structures, an immense number of other, much tinier elementary particles, which are themselves universes at the next level, and so on forever – an infinite downward regression, universes within universes endlessly. And upward as well. Our familiar universe of galaxies and stars, planets and people, would be a single elementary particle in the next universe up, the first step of another infinite regress.”
-- Carl Sagan, "Cosmos"
On the other hand...
"Pocket universes are a type of very small parallel universe sometimes found in science fiction and fantasy. They are sometimes "attached" to a larger parent universe, making them literally pockets of space, but this is not a necessary feature and the name generally just refers to their small size. Small size can be a relative and subjective thing, however; some pocket universes are large enough to contain entire solar systems."