Time
Ramblings of a Retired Mind Time Where has the time gone? How did it get this late already? Where did the day go? Time, as the saying goes, waits for no one. Theories That Hurt My Head There are, broadly speaking, three theories of time: realist, relational, and idealist . The realist view holds that time is a physical thing— time is relative , tied to space, just as Einstein described. The idea that time slows as speed increases is fascinating, but also enough to give me a migraine, so let’s not linger there too long. The relational view suggests that time depends on the sequence of physical events in the universe. In an empty universe, time wouldn’t exist at all. Where the realist says the universe has a clock, the relationalist says the universe is a clock. Thinking about who—or what—started that clock brings on a dull ache along the top and sides of my head, so it’s probably best to move on. That leaves the idealist view, which claims time is a construct of the...