i think at least 80 per cent of people will be using bitcoins by 2020 because it will surely be much more popular then
WTF even today I do not think that bitcoin users more than 20 million people? Lol world population of about 3 billion people while users bitcoin only 10 millions of people?
20 Million is nothing for bitcoin . 2020 is far far away. 5 years are too much for a digital thing. I strongly believe bitcoin will cross 20 million users in 2020. it is already got 1 million users. if bitcoin stable at the right place bases of price. then it will grow extremely fast.
That's too ambitious but I like it, however with a short period of time I am skeptical that we can achieve that huge numbers. I prefer a slow but stable growth.