Could you please elaborate on what the "all-time low" of ZEC represents and what factors might have contributed to its reaching such a level? Is this a recent phenomenon or has ZEC experienced similar lows in the past? What is the current market sentiment surrounding ZEC, and how does it compare to its previous all-time lows? Also, is there any technical analysis or predictions available that might indicate when ZEC might rebound or continue to drop further? Understanding the context and background behind this metric is crucial for making informed investment decisions.