Random city walk

I found Thomas de Quincy's idea of random city walk very intriguing. A city is the perfect place for an activity like this. Constant visual stimulation and endless possible routes make this an ideal location. I find both the curiosity aspect and the "turn rules" aspect interesting for different reasons. If walking and turning curiously, subjective objections can be applied. But when rules of where to turn are implemented, the walker has no choice but to follow a "set" path.

"With no other goal in mind than to satisfy his curiosity about what might be discovered around the next corner, De Quincey spent entire days randomly strolling around London."

For some reason this quote reminds me of a goldfish in a fishbowl. Why does the fake castle in the bowl seem so appealing? For a fish, it is an ever-lasting visual stimulus with it's 3 second memory span. I feel like this can be related to the somewhat endless possibilities within city limits for a person to walk, with visual stimuli around every corner.