https://www.goodreads.com/book/show/534755.A_Technique_for_Producing_Ideas?ac=1&from_search=true&qid=FeFvMKus2k&rank=1+ Incorporating understanding of https://en.wikipedia.org/wiki/Flow_(psychology)
+ Drugs
If you’re willing to accept ‘on command’ as, ‘something I spend days/weeks intentionally preparing/cultivating’ then it seems like you’re in luck.
Sorry if this is all old news; not what you were looking for.
https://www.goodreads.com/book/show/534755.A_Technique_for_Producing_Ideas?ac=1&from_search=true&qid=FeFvMKus2k&rank=1
+ Incorporating understanding of https://en.wikipedia.org/wiki/Flow_(psychology)
+ Drugs
If you’re willing to accept ‘on command’ as, ‘something I spend days/weeks intentionally preparing/cultivating’ then it seems like you’re in luck.
Sorry if this is all old news; not what you were looking for.