Great song that Ive always liked.   BLK or any protocol doesnt have to be only one thing, the more complex extensions are optional use for those participants who choose to take part in those contracts and so on.   The point on BLK is on a simple foundation basis it is alot more efficient then the ongoing costs that BTC and similar suffer from.
  The POW costs are rising every day, I can dig out a chart projection for 2018 but its something we all know already.   I think BTC has a stall speed requirement to its transaction growth to pay those operating costs and that argument is understated in the dynamic for its success.   Ultimately every free market thats ever been, revolved around efficiency and who can best provide that utility or product for cost.   Since no one is really considering that effect, its not in the price but its a question for every protocol, the cost of the network to holders.   I never really see it discussed but I think BLK would fair better then most in comparison.   I'm just thinking theres other factors besides price and factors will swing round again so long as the network remains useful, reliable and dependable in the longer term this is what matters.