The 99th Rule: Rust Developers Cannot Change a Light Bulb

by David A. Sutcliffe

Every programmer has their own set of rules. Some are explicit, others are implicit. But when it comes to programming languages, there's one rule that applies to everyone:

Rule 99: Rust developers cannot change a light bulb.

This is not about syntax or semantics. It's about how the language handles control flow and resource management. In Rust, everything is owned and managed, which means that you're responsible for ensuring that resources are properly released. So when you want to turn on a light, you have to follow the correct sequence of steps to ensure that the light is turned on safely and efficiently.

Why is this rule so hard?

Rust is designed with safety in mind. You can't just assume that a variable holds a value; you have to explicitly manage its ownership.
When you try to modify a value, you have to understand the lifetime of the value and how it's being used.
You have to be careful with mutable variables; you can't just change a value without understanding the implications.

And yet, some people think that Rust is too rigid. They say, "I'm a developer, I don't need to worry about memory." But what they don't realize is that rust is the most safe language out there, and it's built on the foundation of safety and correctness.

So, if you're a Rust developer, remember this rule: you can't change a light bulb. Not because it's impossible, but because it's the right way to do it.

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