The argument is again and again that the value of Bitcoin will increase because supply is limited to 21 million. But this is quite simply wrong. Every time Bitcoin is forked that is in real terms an expansion of the Bitcoin currency beyond 21 million. To some degree the same is true of alternative crypto currencies which will flood the market. There is already more than 1000 cryptocurrencues (
https://en.wikipedia.org/wiki/List_of_cryptocurrencies )
huh I'm bored with this post, do you know that satoshi created bitcoin for only 21 million. there is also the discovery of hardfork is only an altcoin and not the expansion of bitcoin as you say and written on wikipedia