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what is ATH &‌ ATL?

All time high &‌ low for the period

my analysis is not based on such measures.

Go by the link you've provided and see my comment beneath the chart. The answer to your question is right there.
https://www.mql5.com/en/charts/8519021/btcusd-d1-simplefx-ltd

is this a new chart @srezz

yes, with fibo levels of the last major bull run.