You flip the box over and there it is: a maze. "Help the bee get to its hive," it says. Suddenly, you forget you're hungry, your stomach stops growling, and you grab a pencil to help the little bee get home. You’re determined to be the hero of this story.

You start drawing a line and hit your first dead end. Oh well, time to start over. You keep going with determination, sure that you’ll figure it out. Line after line, and after five tries, you finally draw one that reaches the hive’s door. Maze solved! Now you can eat breakfast in peace.

LET'S MAKE IT A LITTLE MORE QUANTUM

You might be wondering why we’re having you think back to your childhood in a discussion about "quantum" stuff, but don’t worry, it makes perfect sense. The maze example is actually a metaphor for how subatomic particles work, which is what quantum physics is all about, compared to classical physics that explains the everyday world we know—like Newton and the famous apple that fell on his head.

This kind of explanation is often used to make quantum physics easier to understand since it focuses on particles that don’t follow the same rules as classical physics. Quantum principles can seem really confusing and different.

What you were doing at 4 years old—helping the bee find its hive—is like classical physics. You use a pencil to draw different paths to reach your goal, which in the maze is the exit. A cereal box maze isn’t too hard to solve, maybe having around 10 possible paths. But solving a maze with 10,000 exits would take a lot of effort and many attempts to find the hive, which would still take quite a while.

That’s where quantum physics comes in. Thanks to how particles work differently in quantum physics, you wouldn't need to trace every possible path one by one. Instead, you could explore all the paths at the same time until you find the exit, which would be much more efficient and quicker than classical physics.

A GOD-LIKE BEE?

How is that possible? It’s not because the bee can split into tiny bees, or fly over the maze, or get help from their buzzing friends. It’s because in this case, the bee is a subatomic particle that follows the rules of quantum physics.

Quantum physics has many laws and principles, but the one we care about here is the principle of superposition. This theory says that particles (like electrons or photons) can be in multiple states and places at once until they’re observed. Ever heard of Schrödinger’s cat? It’s the same idea. Until we look inside the box, we don’t know if the cat inside is alive or dead. It’s when we open the box (when someone observes) that we see the reality. Obviously, quantum physics is more complex because it deals with particles that act very differently from the well-defined world of classical physics. That’s why our little bee, using the superposition principle, could take all possible paths at once, giving it a huge advantage over classical physics and probably saving us a few pencils.

WELCOME TO THE HIVE

The maze is just one of many analogies to help us understand the quantum world that everyone’s talking about these days. Sometimes, quantum physics offers benefits we’d never imagine. Did you really think that to solve a maze, you could just go down every path at once?

Imagine telling your 4-year-old self that instead of using an eraser to redraw your path with a pencil, you could use the superposition principle to take all paths simultaneously and find the hive in less than a second.

“Wow, that little quantum bee is fast!”