A circular pattern with multi-layered lines
I discussed Phillip K. Dick's first theory on time in Anastasija's thread 'Have you ever met a dream character'. If you check it out you can see PKD's first theory among many. He later came to believe that not only were alternate pasts and futures possible, but also alternate present time scenarios. He even gave a speech to the effect that he had full knowledge of the experiences of another Phillip K. Dick that was living in a slightly altered version of the USA--one in which Richard Nixon had not resigned office but had actually been assassinated. He wrote all of this down in Radio Free Albemuth primarily, as well as a few other novels. As absurd as it sounds, for those who follow quantam physics, this notion of multiple versions of the same person living at the same time on slightly different versions of the earth have been seriously entertained. There have even been some early data backing up their suspicions, such as the peculiar ability of a single electron to appear in two different places at the same time. Anyway, PKD tried to explain time as being circular but linear at the same time. Like when you examine a record and follow one of the grooves from beginning to end. For him, this idea could also explain the curious propensity that space-time has for churning out a plethora of possibilities at once. His ultimate view was that this was how God managed the messy business of history. The best possible outcome would be selected, (or win out) leaving the other threads of history to wither away and eventually ending up in an eschatological victory over history and the end of time itself.