I have an idea. I don't know how "astute" it is, since I only have a vague understanding of blockchains and their use as an "internet of their own"
I was thinking, you know Lord of the Rings' famous quote: one ring to rule thme all and in the darkness bind them?
Well. How about one blockchain to link them all and in the cyberspace combine them?
My idea is well since you have things like ethereum, maidsafe, Blocknet and i/o, all trying to create blockchain ecosystems.
What if there would be a GUI for each individual user, where for example i/o is the central ring, and then there is a query box or a selection box where you can click and drag other rings to link into the main one. But this is only the gui for the specific user's PERSONALLY TAILORED blockchain-conglomerate. and well, there should be a function where you, once you have connected your seperate blockchains (I am not sure what the implications are for file sharing, or data hosting, or currency transfer), that you can in the end also give them all a SINGLE passphrase so you don't have to individually change it?
This way you can literally uniquely build your own ecosystem and link the blockchains you want, so that each node of one blockchain is also a node on several other blockchains so that well they all are complicit and help each other, i.e. multifunctional nodes catering to several blockchains?
I don't know if what I'm making sense or understand how it really works... I know ripple has a nice gui and it should make it very easy for the individual to compose (bring together) the pieces of his desired poly-blockchain (multi blockchains combined into one), where you can add or remove them easily by clicking on the image or symbol for it and then add / remove, click and drag, so that people can actually build their own network without using command line since many people seriously well, you know, don't like that or just will be completely TURNED OFF by the need to do that. a simple wizard could guide nooba in the gui as well.
I mean not just "I/O coin sidechains" as mentioned in the Chameleon statement but I mean linking other currency ecosystems and making them interoperable with the "one ring to rule them all" not because it is superior but simply because its functionality unites their differences into a singular functional super-structure...
one important aspect springs to mind, security... these others chains could have flaws that could bring down or have a really bad knock on effect to the eco system.
This system would never work. These other chains dont want to be part of anyone else and vice versa.