Life lines. Lines that represent the path of life through time and space. Unidirectional. Bidirectional. Paths cross many times every second. Every intersection is an interaction. Sometimes many interactions happen at once. It can seem overwhelming but the lines disperse again. Sometimes on the same path, sometimes on a new path. Continuums. Infinite. But not always. An abrupt end. A life line stops, its path through time and space halted or severed. The life line regenerates after a void, carries on, unstoppable. Maybe there is no end?