How does the metaphorical lightbulb go off? Is it more of a spur-of-the-moment thing, or is it a process? Well, it can be both, but in most cases, generating new ideas takes time. It’s a day-to-day process that involves all your daily activities and experience, including reading around and talk to colleagues. New ideas are anywhere. You just have to discover where they are and how you can get the most out of them.
Source: https://www.newyorker.com/culture/annals-of-inquiry/the-myth-and-magic-of-generating-new-ideas