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Definition ELI9-o-meter 2 min read

What Is an Algorithm?

The word sounds like a professor’s homework. It is really just a recipe, and understanding it explains exactly why your social feed looks the way it does.

The word sounds like something scrawled on a chalkboard by a professor who skipped lunch. Strip the mystique away and it is one of the friendliest ideas in all of tech. It is a recipe.

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Algorithm, unscary version

A fixed set of steps that takes what you put in and reliably turns it into a result.

Just follow the recipe

A recipe says do this, then this, then that, and out comes a cake. Change the ingredients and the cake changes right along with them. An algorithm is the same deal. The same steps every time, and the result shifts based on what you feed it. No magic, just instructions being followed to the letter.

The one everyone argues about

When people grumble about the algorithm on their favorite app, this is it in action. It quietly watches what you tap, what you linger on, what you like. Then it does the obvious thing a recipe does with its ingredients and serves you more of the same.

Start clicking on different things and the menu changes to match. It is not reading your mind. It is following its steps, catering to whatever it calculates you want to see next.

You are not just using the algorithm. With every tap, you are writing its next grocery list.

That same basic idea, scaled up enormously, is what sits underneath machine learning and the large language models behind today’s AI.

Side note

If your feed feels like a funhouse mirror, that is because it is one. It reflects what you clicked, not necessarily what you value. So feed it on purpose.

Too long, didn’t read

  • An algorithm is a recipe, a fixed set of steps from input to result.
  • Change the inputs and the output changes with them.
  • Social feeds use one to study your taps and serve more of the same.
  • What you click quietly trains what you get shown next.

Meeke

CEO (Chief Explanation Officer) ยท Like I'm 9

A real person behind a cartoon apple. In tech since elementary school, back when serious storage meant magnetic tape. Explaining it in plain English: no jargon, no judgment, no sponsors. The videos use an AI voice so I can keep my identity out of it.

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