The kid in me was immediately drawn to the description (and diagram) at the outset...
Particles move through dense barriers effortlessly as if barriers do not exist at all. Quantum tunnelling is a phenomenon where a subatomic particle or atom can be present on the opposite side of the physical obstacle that is normally impossible for the particle to infiltrate. This is as if a person is...
Gumby! That's him.
"He can walk into any book with his pony pal Pokey too. If you have a heart then Gumby's a part of you."
Gumby Theme Song 1967 remastered HD
Art Clokey was a true visionary.
Gumby In and Out of Books
In many episodes, Gumby is in a toy store playing with other toys and books. Gumby, Pokey, and their fellow adventurers are able to go in and out of the books and explore different environments and times in history. We wondered if this was done to promote literacy or imagination. Art surprised us, again.
“The books were a gimmick, you might say, for getting out of the toy shop and into another world or another setting. That’s the main reason we used them, not to encourage kids to read. That’s the way they are using these parts of our stories now, which is good. But at that time, it was just a gimmick for getting us out of the toy store and back into the toy store from the book. It turned out to be a beautiful device.”
The traveling into and out of inanimate objects did not stop with books for Gumby.
“In one of the early episodes we had a musical note that was magic. We animated the note and its stem to fly through and into a 78 RPM record. It vanished into a music-land in the record the same way Gumby could vanish into a book. When the videocassette came along we had it go into videocassettes, and we’ll be going into computers in the computer age.”
https://www.gumbyworld.com/gumby-characters/gumby/gumby-pokey-in-and-out-of-books/