Even if we did, there are not enough electrons in these lines to make the "law of large numbers" work. So this time we are bumping against a real barrier.
Anyway, there are not any mass market killer apps based on computation anymore. All the action is in connectivity and bandwidth enhancement. Given the computer market has been split into makers vs takers (or content produces vs content consumers) this is changing the funding models. Earlier the large number of passive consumers buying computers way more powerful computationally than what the typical consumer needs, was subsidizing the cost of computers for the few who actually need that much of computational power. Now the passive consumers are buying simpler devices needing less computation and more connectivity. We can expect coders like us can expect our hardware to get more expensive, like the old line of unix workstations like micro-vaxes or sun-solaris or hp-ux or SG-Iris.