Some may say that there is no such thing as hypothetical science. If that is true, then what do you call a time machine? A time machine exists as an idea, as a scientific concept; a hypothetical scientific concept. According to the dictionary, hypothetical means, “having the nature of a hypothesis, assumed or thought to exist.” When you see something, touch something, smell something, feel something or hear something, then you know, 100% that, that “something” is real, it is true, it exists. But, what if you have never seen something, touched something, smelt something, felt something, or heard something? Does that mean that you cannot assume or think that it exists? Of course you can!