"I suspect that writer's block afflicts mainly people who have some stable and ample source of income outside of writing. So far it hasn't been a problem"

In this quote, Fred Saberhagen provides an interesting hypothesis about the nature of writer's block and its relationship with monetary security. He suggests that author's block primarily impacts individuals who have a steady and enough income source from ventures aside from composing. This perspective suggests that financial independence or security may accidentally decrease the urgency or motivation to compose, as the instant financial requirement is absent.

Saberhagen may be pointing to the concept that when writing is not a primary ways of livelihood, authors may lack the incentive to push through imaginative difficulties. Financial stability can lead to complacency, where the sense of urgency and appetite that typically drives creativity is reduced. In essence, writing ends up being more of a leisurely activity instead of an essential, required pursuit.

Furthermore, Saberhagen's reflection, "So far it hasn't been a problem", perhaps shows his individual experience that, for him, writing has actually constantly been driven by passion or necessity instead of financial cushioning. This could suggest that he either does not have an alternative source of income, and even if he does, it does not diminish his drive to compose. It paints an image of a writer who is possibly more successful, prolific, or committed due to the fact that they do not have the luxury of being ineffective, highlighting the age-old dispute between art and economics.

The quote also subtly discuss the glamorized notion of the "struggling artist", suggesting that battle, in some type, may sustain creativity. Without some type of existential or monetary pressure, writers may not be pushed to explore the depths of their imagination, resulting in what we call as writer's block. Thus, Saberhagen's observation opens a window into the psychological characteristics in between imaginative motivation and financial requirement, suggesting a special angle on the phenomenon of writer's block.