I mean like awareness that, just under the surface, there are deep explorations waiting for the right time and place to emerge; things you’ve set aside or placed on the back burner but will tackle eventually/many you already have tackled.
Are you deeply self aware of these interests like some kind of list? If so, are these interests deeply connected in your mind to your past explorations and interests like some kind of road map or branching tree structure of thought?
I think what OP means is, are potential rabbit holes that we have noticed but not explored yet.
Like maybe you’ve baked a sourdough bread once and felt that it could be fun to ‘learn some more’ about that at some time.
More like, I made sourdough and thought I wonder what this looks like under the microscope and how bacteria can be isolated and cultured to make unique flavors in a practical DIY at-home context. Then putting that idea on a mental back burner to find yourself actually pursuing the idea a decade later when you encounter a great deal on a microscope.