Money is just a shared hallucination. Its value is whatever we all agree it is.
This explains why you can't replicate Bitcoin’s value by replicating the technology. You would have to also replicate the hallucination (network effect), which you can’t. You’ll have two blockchains, but only one of them has a shared hallucination. This makes one of them valuable, the other worthless.
If that seems like a strange claim, think about the alternative: it means that it should be possible to create value for essentially no work. Every new blockchain ever produced was built on the premise that you can create a valuable investment that offers no income for the fixed cost of copying Bitcoin with alterations.
Money may be little other than a bunch of people attributing value to something without much direct use.
It doesn’t matter if this sounds ridiculous; if there is a behavior that corresponds to this belief which benefits people, then they will keep behaving that way.
-- an excerpt from It's Not About The Technology, It's About The Money (2016), its 2-minute version can be found here: https://2minutebitcoin.org/blog/bitcoin-is-about-the-money-not-the-blockchain-technology