Is it possible to know everything? If it is possible, then is it dependent on time? that is, for a defined moment in time (say a second), one person can know all that there is to know about the universe. since the universe is constantly changing, the future state cannot be stated definitely and one person cannot know what comes next in the future. In answer to my original question, I would assume no. My logic (which I feel has error) rests on the fact that in order to know everything, you must know with certainty that you know everything you don't know in order to make the comparison of how much you know. this is a paradox, therefore it is impossible.