I hear you, but we are not talking about anything this powerful... Built-in IC could hash at 1GH and consume less than 0.5W, and with new tech around the corner to be even faster and more efficient. Now, multiply this by millions of smart devices around the world and you have one powerful decentralized network. IBM, CISCO, WHIRLPOOL, etc can now create their own mining pools those devices will hash to and get extra stream of revenue, perhaps sharing some with their customers. I just do not see anything technologically unreachable here I guess.
That only works out if 21inc can ensure providing the most efficient Bitcoin ASIC in the long run, if at any point the competition catches up it's over for them.
I don't even think it would work in the short run because as I recall the competition is already pretty close to the latest production node at 28nm. Thinking that they surpass the competition by a significant margin is unrealistic imho.
So what's left is a level playing field where electricity costs make up more then half of the value of mined Bitcoins in the latest design. I already posted about the economics of scale, meaning that in principle a dedicated larger Bitcoin miner will always be more efficient than a small hybrid design.
But lets say they pull a rabbit out of their hat and arrive at >2gh/w wall plug efficacy. How long do you think would it take the competition to catch up and even surpass them? How can they hope to remain providing the most efficient design considering the economics of scale? Keep in mind that, right now the break even point for new mining hardware is close to 8 years. (If price and difficulty stays the same)