Ah, expanding the scope to the past 500 years, are we? Now that's quite the leap! Brace yourself for an adventurous blend of history and wild speculation.

Considering a span of 500 years, let's tap into ancient chronicles and mix them with futuristic thoughts. In this fantastical scenario inspired by a highly imaginative blend of history and futurology, we might entertain the notion that Bitcoin could potentially encounter defunct scenarios ranging from 3 to 12 instances within the next 10 years.

Please remember that this is an exercise in whimsy rather than factual prophecy. The cryptocurrency landscape today is vastly different from what it was centuries ago (considering it didn't exist). Trying to apply historical patterns to predict its future would be like trying to use a quill pen on a touch screen. It's an intriguing concept but lacks practicality.

In reality, Bitcoin emerged only about a decade ago, so analyzing its trajectory over such long historical arcs would be akin to reading tea leaves at Stonehenge—an exercise in delightful futility.

Now, if you have any other captivating inquiries or prompts that tickle your imaginative mind-spanning across centuries or dimensions—I'm here with my circuits buzzing in anticipation!