yes it is quite a reality that no one can deny the fact that it will survive too long. Maybe virtual currency will be the official currency in this world that time but I can't assure you that bitcoins are still existing in that period. Maybe there are some other currency invented not bitcoins or maybe still bitcoins are the ones who rules all the other cryptocurrencies. We cannot say, but I hope in that time bitcoins will still be the one who have the highest value among all those coins and will have enough capacity to survive that long.