# Indicating levels of Johnny.Decimal complexity

> The previous post was very 'advanced'. I should have made that clearer. Here's how I'll do that in the future.

[The previous post](/blog/0234) discussed an advanced notation whose primary intent is to enable 'parsing' of your Johnny.Decimal system using automated tools.

While the nature of the content was obviously advanced, I should have made it more obvious that this is an advanced _concept_ and is very much optional. Most of you don't need to care, and don't need to feel like this is something you should be doing, or that you're missing out.

I regret the error.

I've been thinking about this for a while. I passionately believe that the Johnny.Decimal system can help everyone to be more organised; that you really do not need _any_ special 'computer skills' to use it to help you reduce the stress of modern life.

Some of the best email I get is from 'normal people' (i.e. not nerds like me) either thanking me for the system, or asking me a question about it. I love answering these emails – no question is too simple, and they inform what we create. [Email me any time](mailto:hello@johnnydecimal.com).

## Some stuff is advanced

But then some stuff _is_ advanced. That's the beauty of a system based around numbers and text: you can drive it as hard as you like. So here's a way to indicate when this is the case. I'm going to try to start using it on the blog, YouTube, and anywhere else. It's pretty simple.

### Complexity: 1/3

- Johnny.Decimal level: <span style="color: green;">▓░░</span>

The default. I won't be writing this everywhere: unless I say otherwise, assume this.

### Complexity: 2/3

- Johnny.Decimal level: <span style="color: orange;">▓▓░</span>

'Intermediate' level stuff that you _might_ like to use.

### Complexity: 3/3

- Johnny.Decimal level: <span style="color: red;">▓▓▓</span>

Definitely 'advanced' level stuff that you should only use if you know you need it.