What he probably meant was if Bitcoin catches on in any meaningful way the price must rise. If it never catches on it's likely the price will go close to 0 due

What he probably meant was if Bitcoin catches on in any meaningful way the price must rise. If it never catches on it's likely the price will go close to 0 due to lack of mining security. The dollar isn't necessarily Bitcoin's competitor. So maybe the dollar is good because it has such a power behind it. But what about all the other currencies of the world? Can you say they are all better than Bitcoin also? Try thinking about it in a less US-centric way.