Here's why:
* Waldo's abilities are technological: Waldo has a specialized suit and technology that allows him to control objects and interact with the world remotely. This is a clear example of science fiction, not magic.
* The story focuses on scientific advancements: Heinlein's story explores the possibilities of technology and its impact on society. The focus is on the scientific principles behind Waldo's abilities, not on mystical or supernatural explanations.
* Heinlein's writing style: Heinlein is known for his hard science fiction, which emphasizes realistic scientific explanations and avoids relying on supernatural elements.
While the story might seem fantastical, it's ultimately grounded in the potential of future technology.
Therefore, "Waldo" should not be interpreted as evidence for the existence of magic. It's a fictional exploration of what might be possible with advanced technology.