RE: Announcing the Launch of Hive Blockchain
And demand doesn't double if the supply is doubled.
This is correct if we make the assumption of a zero-sum game. The point is that the demand is not determined by the supply (and viceversa). The issuance of new tokens on a blockchain is determined programatically and has no correlation with the price. The demand is determined by the expectation of potential buyers.
Of course part of the expectation of future value has some correlation with the supply but once both products start to diverge in development that correlation goes down.
In the short term the value will be split but in the long term we will see that each coin will capture different market segments (or not). Since the crypto market as a whole is tiny compared to the "real" economy we can't assume a fixed demand (in the long term) and therefore it is not a zero sum game.
Well, what happens in the long term is impossible to say. But for the moment the crypto market is a zero sum game, the total market cap has not been growing for some time now. Only the number of coins who share this market cap has, and that is not helping at all.
But anyway, I don't really care if a Steem, or a Hive, is worth 7 Cent or 15 Cent. I have been wondering for a while now if this reward system is a good idea for a social community. So far, it causes more trouble than being benefitial.