You would have sold it even before the price doubled. To see into the future is not enough, you also need the retrospective view FROM the future. It's the same with bitcoin and some stocks. Brother I would be very rich now if I got 100 bucks for every person telling me that he would be millionaire now if he still had the bitcoins bought 8 years ago for 7 dollars. And they always forget that they would have sold at 1000 dollars to save earnings, if they didn't sold then they would have sold as it was at 5000 Dollar already and then in one night fell to 4000 dollar.
The "present-you" is always concerned about loosing earnings and will sell immediately if you fear, the 20% higher price 18 years ago could fall to 0%.
Remember, the story of people selling a daytona of the 50s for some million dollars is in most cases the story of old people that forgot the watch or their children finding it after they died. The moment you realize that you could even make profit with selling a USED watch is th emoment you should say good-bye to such a cinderella story