It's easiest to put in point form (as I have with my rough notes on this):
- our universe (as we currently understand it) can be thought of as a big, unfinished quilt, continually being knit at the top
- each thread in the blanket represents an individual life; ergo some threads are longer than others, and some threads are interwoven (representing the relationship with other lives in the world) with a lot of other threads (whereas some other threads are interwoven with a very few)
- the blanket should look v-shaped, where the top of the blanket is always expanding (think of time as being the y axis)
- w/ this theory, time travel would not be possible (a la autoinfanticide, or the grandfather paradox), because threads would only be allowed to be woven upwards -- downward weaving would be impossible, since the blanket below has already been woven and cannot be unwoven
- having said this, interdimensional/parallel-universe type of travel is theoretically possible, were several blankets may be "stacked" up on each other (or pressed side by side)