What does Xiao's burst scale off of?

Can you clarify for me what exactly Xiao's burst scale is referring to in the context of cryptocurrency or finance? Is it a metric related to trading volume, market capitalization, or some other aspect of a digital asset? Understanding the specifics of this term will help me provide a more accurate and relevant response. If Xiao's burst scale is related to a specific cryptocurrency or blockchain project, I'd also like to know more about that to better address your question.