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 always depends on what virtual world it is. But if focused on bitcoin only, so bitcoin will be main currency but with altcoin as side currency. It will be more fun than a world with 1 currency only.