The green line shows the next major support which sits at around $42. At this moment in time, we are at the very bottom of the current . If this support breaks and the price drops below $80, the next stop is $40.
Point of Interest is the by price indicator that shows a gap between $80 and $40. If the price was to enter that zone, we are going down to $40.
The only thing that goes for Ethereum at the moment is the rising selling which isn't reflected by price. The candles are getting smaller whilst the expands. This could indicate that there's a strong sequence of buy orders around that area and the momentary reversal could be in the offing.