2016 is already a lot of people using bitcoin. and I believe, in 2022 at least 50% of people in this world already know what it bitcoin. bitcoin will become a medium of payment globally in 2030. it is my prediction.
I think it's to much. I don't think 50% of people in this world will use bitcoin in 2022, if the development of bitcoin is good, maybe it might happen. I think 30-40% in 2022.
Not sure what makes you think that 30-40% of the people will use Bitcoin in 2022, but it's simply impossible. 30% means 2,100,000,000 people using Bitcoin..... Really? Let's focus on reaching 1% first before speculating about insanely high percentages.