Bitcoin - peer money

At the moment, the most popular cryptocurrency is Bitcoin.
Time will tell how successful it will be. But so far, we see that in most cases, the first pancake is a big one.
For example:

1. Our first search engine was Yahoo, but it was in demand until Google came along.
2. Our first search engine was Rambler, but it was in demand until Yandex came along
3. Our first social network was Classmates, but it was in demand until Facebook came along...