Why isn't lightning used as an energy?

Harvesting the power of lightning has proved to be very difficult, and no one has successfully found a way. A lightning strike happens very quickly, so extremely high electrical power is involved. It is difficult to convert high voltage power to the lower-voltage electricity that can be stored.

Theoretically, yes, the energy from a lightning bolt be caught and stored. Practically, no, you would never be able to build a big enough capacitor to hold the charge. There is just too much energy in a lightning bolt to harness with today's technology. although there are those that believe this fulminology machine actually exists and at this moment in time is being withheld due the enormity of its consequences?