The blog post paraphrases the verbatim (see my transcription of the audio below) as follows
If you want to get rid of all the automatic ways in, then you have to do something from scratch so to speak and build something that you haven't done before . . . It's like you do it for the first time. And I think that's that's the best place to be in writing…. And I think Munch somehow searched for those places in his painting throughout his life.
Quote in context (my transcription)
[12:55] Kurt Anderson: And, and, you don’t just mean the overused formula that everybody would regard as, that’s been used forever, that’s a cliché; you mean, any technique or any trope or any idea that an artist just comfortably returns to in his or her own work, right? It’s all of one’s personal habits, as well, and tics.
[13:16] Karl Ove Knausgård: Yes, exactly, and its about safety, it’s easy if you find a way to do it, find a way to paint or find a way to write, and it’s works to be successful, or at least it works, it’s very tempting to just continue because [sigh] the risk of failure is enormous in doing these things, you know. So, for instance, a man like David Bowie, he should be admired so much for the courage he had to completely go somewhere else you know, every second year, since 70s and 80s. Because the risk and what’s at stake is a comfort and you know your skill, you can do it, and it’s easy, you can do it one more time, but if you do it, then you know what it is, and there’s no curiosity anymore, and you won’t find anything else, anything new.
[14:08] Kurt Anderson. Right. I’m fascinated by the common struggles and common challenges and problems of artists in different disciplines. You say, for instance, that a serious painter, quote, starts a work because he knows what he wants to do but not how to do it. And that seems at least as true of writing as painting.
[14:35] Karl Ove Knausgård: Yeah. If you want to get rid of the novel before the novel, if you want to get rid of all the automatic ways in, then you have to do something from scratch so to speak, and build something that you haven’t done before, you don’t know how to do it, and it’s kind of amateur way of doing things, you know, there’s no professionalism in it, it’s as if you do it for the first time. And I think that’s the best place to be in writing, and you can feel it in the novel. It’s not like a professional, you know, smooth, … it’s much more awkward, and I think Munch somehow searched for those places in his paining throughout his life, actually.