Asking whether time is real is really a philosophical question, and it hinges very much on what you mean by real.

But I suspect that what you really read somewhere works a little bit differently. If we consider the equations of special relativity, they can be given a symmetry in terms of a four-dimensional space -- spatial length dimensions

**x, y**, and

**z**, and the fourth dimension, which incorporates time, has to be given the form

** ict **.

So the first three co-ordinates are presented as real numbers in the space we are familiar with, but the time that we are familiar with must be incorporated not as a real number but as an imaginary number in the fourth dimension. I think that what the article that you "read somewhere" might have been saying was that if that fourth dimension had time in it as a real number, then it should be possible to build a time machine. But that is mere speculation on my part.

Otherwise, what is real, and whether time is real, has been debated endlessly by professional philosophers and amateur philosophers (i.e. physicists), and any connection with a time machine is mere speculation.

When I first came here I was charged with keeping my mission quite secret, and I had to send my time machine back. If all is well, it will return to collect me at a pre-programmed time and place. [

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