The modern economy is based on carbon (oil and other fossil fuels). While we have acknowledged the issues for a while, it is only recently that we are truly starting to seek alternatives. We hear of sustainable energy sources and alternative fuels. But there is only little about magnetism and gravity as a source of power. It is a force, which can result in the movement of an object. If we can convert wind to electricity/energy, indeed, we should be doing more to investigate the possibilities of how we can convert magnetism or gravity to power.
There is no doubt The Internet has changed the world. It has transformed work, education, and entertainment in the developed world and the third world. Its significance can not be overstated because the connectivity facilitates and accelerates changes elsewhere. It is through the internet that news of the other changes becomes known more quickly.