The blockchain mechanism is brilliant as a security for the internal valuations, i.e. the transactions in and out. But for the value it has in the marketplace there is no guarantee - no goldstandard. That would have to be a product of technological advantages within a certain climate of transactions - an inherent surplus value to a bitcoin could be generated from that.
a lot of cryptocurrencies have special application within related companies or even companies that bought in, and all of them have to be bought through bitcoin. So the currency is now receiving some conditioning of environments to it. That may turn out later on to be a lasting value, but only when payments are being measured in a static bitcoin price that doesnt relate to the dollar. Other nations may move to a bitcoin dependency to avoid the dollar. But then the dollar could easily crush it by making bitcoin incompatible to US markets.
" The strong do what they can do and the weak accept what they have to accept. "