They must either be shorting it (in which case please show me your portfolio) or think that the market will be irrational and the prize won't go down (in which

They must either be shorting it (in which case please show me your portfolio) or think that the market will be irrational and the prize won't go down (in which case please define what "fair value" means in this case and why I should care how volatile Bitcoin is in comparison to gold)