Comment by ordu

> 1) You are NOT serious (in effort to be invested, resources, knowledge), then don't do it.

I did it while being non-serious. I got like a half of a language working. And I don't regret it. It was fun. I've got a little bored and distracted by other things, and so I've stopped working on it.

Such posts are great, because they let you pick some new ideas that will be fun to code.

> You ARE serious, then go for it.

I don't think it works this way. To become serious you need some really good idea. But to get a really good idea you need to do at least a couple of full loops through the four phases the article begins with. Before you invested a lot of time into writing languages, you are highly unlikely can get a really good idea for a new language.