If in early 2017 you would have said that at the end of the year the price of the BTC will be more than $ 10,000, no one would believe you. Nevertheless, the price was more than $ 19,000. in the same way, by the end of this year the price could jump above $ 20,000, but it may fall below $ 1,000. For sure, no one can know this.
Exactly, now one can really know. I remember being really optimistic, I would not consider any negative possibilities, but we must consider everything.