Too far thought if from now discuss how the price of Bitcoin in 2021. The current year is still beginning and the road passes through 2020 is also still a long taste. It is not wrong if talking how BTC at 2021 would touch 25K $. Unless you are ready with all the risks that will happen by buying BTC now which price ranges in 8600-$8700, and you have confidence that 2021 BTC will reach the price you want it is your right. But even though we speculate anyway it should be sensible and logical. You should start trying to trade from now by buying BTC, try it within 1 week only, then you consider how it feels like holding BTC within 1 week, and it can be used as a lesson and consideration to determine The next step.
That never stopped people predicting 1 million bitcoin two or even three years away from their date;)
It's never wrong to talk about X price and X date. It is wrong to think it will actually come true! Just be chill, put in something, assume you'll lose it and when the day comes, if you're rich yay. If you're bust, you had fun too!