A single percentage problem today. In order to become a mainstream everyday currency, use of Bitcoin will have to increase by three, four, possibly five orders of magnitude.
False. It's not linear, it's not directly related, but it's certainly not unrelated. As reliance on a blockchain increases, as it becomes normalised in our daily lives, the number of entities motivated to be part of the blockchain increases. As the number of entities increases, the number of compute cycles per transaction increases.