I have given a ridiculous (and likely unhealthy) amount of thought to this.
I still don't really have an answer, but I think it's pretty close to yours. One of my favorite things in general is exploration and I could see my ideal afterlife incorporating ample amounts of that and adventure. That's dampened by often wondering what purpose all of that exploration would have and there being an eventual end to the novelty. I wonder if that actually could be avoided because in the vast array of things that can be experienced, is it impossible to stay bored of one thing forever?
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Essy, Avian Enthusiast