The universe is expanding, I am told by a friend who is well-trained in such matters, not only in its spatial dimensions, but also in its time dimension. This sort of suggests that there is now more time between the beginning of time and yesterday than there was when it was actually yesterday. (You have to think about that for a moment.) This got me thinking that, perhaps we are not moving through time at all. Rather, the amount of time in the past (and the future) is expanding. As the past expands, so more things have happened, and thus the illusion of a progression through time is created. I realise that if this idea were anything other than complete nonsense there would be an article here or Wikipedia about it, but I can find none. Is anyone familiar with it? What does it mean that time is expanding, if not the above?