That state has several names: "Flow" or "In the Zone". It's when you have a whole, interlocking bunch of ideas in your head at once and can visualise how they

That state has several names: "Flow" or "In the Zone". It's when you have a whole, interlocking bunch of ideas in your head at once and can visualise how they work together. It often takes an hour or more to reach that state. Sometimes many hours can pass 'in a flash' while in it. Its a common situation. And a famous depiction: https://heeris.id.au/2013/this-is-why-you-shouldnt-interrupt-a-programmer/ https://heeris.id.au/2013/this-is-why-you-shouldnt-interrupt...