Like all great rivalry, there is always an opposing force, like ying and yang or iOS vs Android, and Nikola Tesla [ Wikipedia ] is Thomas Edison’s greatest rival. Both are genius and invented many things, it is hard to say which is better as both contributed greatly to the world of science and technology.
Nikola Tesla is known for promoting AC (Alternate Current) while Thomas Edison for DC (Direct Current). Which is better? DC is better for electronics, but AC works better for passive power transmission and fixed speed motor applications. Both have their pro and cons.
For Tesla’s fan, know that Tesla’s idea of free electricity is nothing more than an idea that will not work. There can never be free energy, one may argue on cheap energy but never free. Just like medicine, water, government services, religion and more, these good and services are not exactly free even if it means you are not paying for it directly. Someone is footing the bill via taxes collected by the government.
Simply put it, it cost money to set up the Electrical grid and infrastructure, to maintain it and upgrade it, all of these cost money and if you are not paying for energy, how can these electricity companies maintain these infrastructure at top performance? Electricity polls doesn’t magically appear, someone has to manufacture it, erect it and mine the copper and metal inside the wires, just like how it cost money to make medicine, the do research, to store them and distribute them, and those x-ray machines, they don’t magically appear.