but i very sure if the value of eth will never become to zero my friend, even i believe if the price of ethereum will surpass the past high next year

Indeed. For the volume it got there must be a melt down of some sort to get it to zero. With the overall positive crypto mood eth will rise the upcoming time.
It seems impossible to melt to zero, if a massive blocking occurs in crypto the possibility will be zero, but again I don't think that is possible because this industry has grown very well which of course the price of each coin will continue to increase and going to reach the next ATH is sure to happen and we just need to wait for that moment.