We have our memories of the past/past events. Some events we remember in details. Some we remember vaguely. Some scientists believe every thing, event is nothing more than information. We receive our memorial from our senses. Our brain receive information and translate them into memories. In memory, you can recall past events in an instant. [...]
What are past, present and future? How do we divide and decide them? You can say past has already passed, present is now, and future is about to come. But how can we certain that “now” really is present? Some say time is like a river, and you can’t go into the same river twice [...]
Recently, I have been reading physics books of Michio Kaku, a very popular physicist, and these books make me wonder a lot. Sometimes I even have to bring back myself from tiny world of quantum particles to our every day world. Is time travel possible? According to Kaku, there is no known law of physics [...]