I was rewatching Ready Player One earlier with my nephew and this thought came to my mind when I saw the prize money. If, for example, we live in a virtual world (however you describe your understanding of a virtual world) do you think we will only have one currency to use and that is bitcoin? Or will we still have different coins (altcoins)?
It must be borne in mind that not all people have the opportunity to spend a lot of time on the Internet. They mostly live and work in our rough physical world and are unlikely to ever engage in cryptocurrency. Cryptocurrency will not be the dominant currency in the world; it was created not to replace other currencies, but to go along with them. This will be one of the many varieties of payment systems. While it is difficult for us to foresee how far cryptocurrency will go, however, this type of currency has very good prospects.