Is time continuous or discrete?

Time is like a movie, it can feel smooth or choppy depending on how you watch it.

Imagine you're watching your favorite cartoon. If the frames are fast enough, it looks like everything is moving smoothly. But if you pause the video and look closely, you can see each still image one after another, that’s what we call frames. In the same way, time might be made up of tiny moments called instants, kind of like those cartoon frames.

Like Counting Steps

Think about climbing stairs. When you're on a step, you can feel it under your feet. You move from one to the next, that's a discrete jump. But if you're walking on a smooth path, it feels more like a continuous flow, no clear steps to count.

So time could be continuous, like a smooth path, or discrete, like stairs, and we might not know which one is true yet! Time is like a movie, it can feel smooth or choppy depending on how you watch it.

Imagine you're watching your favorite cartoon. If the frames are fast enough, it looks like everything is moving smoothly. But if you pause the video and look closely, you can see each still image one after another, that’s what we call frames. In the same way, time might be made up of tiny moments called instants, kind of like those cartoon frames.

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Examples

  1. A child counts seconds between fireworks, thinking time moves in steps.
  2. A clock ticks once every second, like a heartbeat.
  3. Time feels smooth when you're walking but jumps when you blink.

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Categories: Physics · time· continuity· discreteness