Here's the great thing about writing: you don't have to do it. All you have to do is not do anything else in that time frame. So: you put your idea down and... now, you don't have to do anything. You just sit there and you eventually will realize "There's a problem here." Right? And your brain will naturally try and solve the problem, and the next thing you know, you're writing! So, it's not about forcing yourself to write; it's about creating a -- what do we call it? -- a "discrete space". Is that the right word? So, that's how you write: create a place and time where that's what's happening... but you don't have to write! Just be there with the problem.