Sorry for the pessimism, but (1) my image of the bitcoin blockchain with all those appendages is the first image above with 20 chairs bolted to each wing and three cargo containers attached underneath the fuselage. Then, (2) moving away from bitcoin as currency would be like removing the engine and propellers to make room for more luggage.
i hate to have to agree with the ultimate Bitcoin troll but you're right.and we know this by Adam's vision of what Bitcoin is and his thoughts.
oops. you simply said Bitcoin and not Bitcoin+SC's. my mistake. i don't agree with you. you're simply a troll.
No, by "the bitcoin blockchain with all those appendages" in sentence
(1) I meant the bitcoin plus sidechains plus wahetever additions to the protocol are being considered to make sidechains work and to try to co-opt any promising altcoins.
That project is trying to patch extraneous functionality into the already-abused bitcoin protocol in order to turn it into a global production service for a multitude of fuzzy tasks that it was not intended to do.
The bitcoin protocol was frugally designed and implemented by "Satoshi" for a single specifc purpose: namely, to
test whether his solution to an old technical problem (motivating a bunch of uncoordinated volunteers to maintain and protect a distributed, decentralized payment ledger) actually worked. Just like the Wright Brothers' Flyer One was designed and built specifically for one purpose: namely,
test whether their solution for heavier-than-air flight actually flew and could be steered - nothing more.
The bitcoin protocol is already ill-suited for all the things that people want to use it for today -- hedge against inflation, get-rich-quick scheme, internet roulette/dice, global competitior to paypal, visa and western union, .... And now it is to become the central timestamping and trust management and whatnot for thousands of sidechains. Such extreme repurposing of an inadequate design is bound to produce a monstrosity that will not stand on its feet.
The second part
(2) above refers to the more extreme view that bitcoin would cease to be used as a currency and would become to all cryptos what the gold used to be to all national currencies. But gold used to fill that role only because of historical and cultural inertia, and it lost it once people got used to unbacked paper money. Bitcoin does not have such history; on the contrary, the altcoins started out as fiercely independent of it. Thus, trying to turn it into the 'gold of crypto' and convincing the altcoins to adhere to the 'gold standard' is going against the natural evolution of money. Worse, if bitcoin stops being used as a currency of commerce, it will lose its value, and then will become useless also as crypto-gold.