I don't think it's so much a matter of how fast CAN you go from idea to first line of code, but rather, how fast SHOULD you go from idea to first line of code.

I don't think it's so much a matter of how fast CAN you go from idea to first line of code, but rather, how fast SHOULD you go from idea to first line of code. Starting writing code for an idea is often as simple as opening your text editor or IDE. So on the order of single to double digit seconds? That doesn't mean that jumping straight into writing code is a good first step. Figuring out what you're building, why you're building it (is there demand?), how it will work from a user perspective, and how you will architect it, are often useful questions to answer before diving in.