Downloaded the video of Stephen Hawking's theory of everything using Bittorrent . It is a very informative video on efforts to bridge quantum mechanics and general theory of relativity. It talks about issues on "explaining" gravity which is part of four fundamental forces of nature (Other three are electromagnetism, weak interaction, and strong interaction).
Human beings over a period of time tried to explain things based on senses.Unfortunately our senses can think only of three dimensions and it requires complex mathematical equations to define dimensions beyond that.
Recently there was another attempt to define theory of everything.
