Tis easier to build two chimneys, then to maintaine one.
It is not easy to calculate the cost of land to build individual or community toilet systems. But we need to account for it when we total up the true cost of sanitation.
A lot of the roads, bridges, railways, and such are built through the use of forced labor, and that is causing the people great suffering. What we put into this in the form of human suffering is not worth what comes out of it.
Cash is not cheap. The physical infrastructure is not easy to maintain and cheap.
The idea that Google, Yahoo, and eBay are getting a free ride is absolutely unfair criticism. We have to build out our own infrastructure. And we have to inter-connect to the public Internet.
Cloud computing means you are doing your computing on somebody else's computer. Looking ahead a little, I firmly believe cloud - previously called grid computing - will become very widespread. It's much cheaper than buying your own computing infrastructure, or maybe you don't have the power to do what you want on your own computer.
Our huge infrastructure that we need for keeping cash is very expensive.
We build roads and they cost two and three and four times what they're supposed to cost.