They will surely understand the value of BTC in 2020. 
Let's see what will happen ???May be a positive
Let's see what will happen ???May be a positiveall businesses must always hope for a high price increase to make a lot of profits, especially in 2020, future bitcoin prices are strongly influenced by market participants that occur in the present, if from now on market participants use bitcoin to become a payment instrument
replacing conventional currency, there will definitely be an increase in the value of bitcoin itself and it can be ascertained that the value in 2020 can be very high ... but can happen otherwise if business people use bitcoin only for savings or assets then it can be ascertained in Bitcoin 2020. finished.
I think the second option is more believable. There will come a new currency, which will replace bitcoin, as a means of payment.