whats the possibility of bitcoin rising to $20000.
For yes it has posibilities but people who invest and holds any kind of coin/cryptocurrency shall kind a controll but not literally because bitcoin market value and its price are unpredictable.
According to the current market, BTC price can hardly rise above $ 10,000. If you are holding a BTC and the current price is higher than the price you bought, I recommend selling them to make a profit, should not expect too high, BTC can hardly reach such price because there are too Many other altcoin born, they have dominated the market with BTC.
Yes there are to many altcoin that rise and born but still for me without ethereum and bitcoin they are nothing and without the money of the investors they are nothing and traders says shitcoin.