The Lofstrom Loop might be hamstrung by the problem of The Political Economy of Very Large Space Projects. http://www.jetpress.org/volume4/space.htm
Prototyping ServerSky is quite the opposite, however: it's going to become much easier. And if prototyping it shows a clear-cut business case, the decision to launch ServerSky becomes only net-present-value computation, not a problem of political economy. If the Lofstrom Loop proves to be the most cost-effective way to scale ServerSky (and maintain it), it'll just happen.
Here's how I think prototyping ServerSky...
I have reservations about BitCoin, but mainly on the monetary policy level. Inflation sometimes has its uses in economic policy, and deflation can sometimes be a lot more disastrous than inflation. I think BitCoin, by capping the total amount of money that can possibly circulate, would lend itself to liquidity traps - a deflationary spiral.
However, the idea of "computationally mining the sky" (not just using solar energy, but also using the cosmos as a heat sink) is positively brilliant. Perhaps the only question is: when will its time come?
To be... (read more)