Before there were dancing cats or viral videos, there was the meme. The original concept is much broader than what we see on the internet today. It's an idea, behavior, or style that spreads from person to person within a culture.

Biologist Richard Dawkins coined the term in his 1976 book, The Selfish Gene. He needed a word for a unit of cultural evolution, similar to how a gene is a unit of biological evolution. He shortened the Greek word mimeme, which means “imitated thing,” to meme, making it sound like “gene.”

The comparison is simple but powerful. Genes are packets of biological information passed down through reproduction. Memes are packets of cultural information passed down through imitation.

Think about the tune for “Happy Birthday.” You probably can't remember when you learned it. You just absorbed it by hearing others sing it. That tune is a meme. So are catchphrases, fashion trends, and the knowledge of how to build an arch. These are all ideas that live in our minds and spread to other minds.

Memes are the building blocks of culture. They are the stories, inventions, and traditions that we pass on, not through our DNA, but through our interactions with each other.

Replication is the key. A gene replicates when an organism reproduces. A meme replicates when it's copied, whether by someone telling a story they heard or whistling a tune they can't get out of their head. The process is imitation.

Just like genes, memes compete for survival. Not all ideas are successful. Some catch on and spread widely, while others fade away. Dawkins suggested that the most successful memes have three key qualities: fidelity, fecundity, and longevity.

When a meme is copied, it can also change slightly. This is like a genetic mutation. Think of a rumor that changes a little with each telling. Sometimes these changes make the meme less successful and it dies out. Other times, a change might make the idea more appealing or easier to remember, helping it spread even faster. This is cultural evolution in action.

So, while we often think of memes as a product of the internet, the concept is much older and more fundamental. It describes the very way culture builds, changes, and perpetuates itself.