Once I would agree if you ask can ETH may touch $10k price range but reaching $100k mark seems to me very difficult but not impossible because this altcoin has touched from $0.50 to $1400 mark in two years so on this basis I may not underestimate its future growth hopefully we may see many surprising performance of ETH in near future.
We can't deny the fact that everything is possible in life. When eth was just 50 cents, I guess, when people was speculating it will hit $1k someday, it was absurd having the idea. But it did hit, and more than that. So i will not say hitting 100k is absurd idea because it may really happen in the future, but we don't know when. Let's hope that crypto will not be obsolete someday, because if it will be, then, crypto will screwed.