🌌Mass and time are not the concrete things we imagine them to be.
⏰A thing's mass and experience of time can be altered by its motion.
❓The flow of time is defined locally for observers and there is no universal rate of time flow.
🔁Elementary particles are massless and their composites experience time through interactions.
🌀Causal connections and the exchange of signals create an ordered sequence of cause and effect in spacetime.
Why don't elementary particles experience time?
—Elementary particles, such as electrons and quarks, gain their mass through interactions with the Higgs field. The internal interactions of these particles are what give them a sense of time, not their individual components.
What happens in the twin paradox?
—The twin paradox is a thought experiment that involves a pair of twins, one of whom takes a fast trip around the galaxy and the other stays at home. When they reunite, the traveling twin has experienced less time due to time dilation caused by their change in motion and acceleration.
Does time dilation occur in a warp drive?
—In the Alcubierre warp metric, there is no time dilation due to motion or acceleration. Your timeline remains synced with your point of origin, so there is no time discrepancy during warp travel.
How is the flow of time defined locally?
—The flow of time is defined locally for observers and things. It is based on the rate at which their internal machinery can interact. This rate of interaction determines the flow of time, and it can vary depending on the observer's motion and location in spacetime.
What creates an ordered sequence of cause and effect in spacetime?
—Causal connections between points in spacetime create an ordered sequence of cause and effect. These connections allow signals to travel between points, and the speed at which signals propagate determines the causal order. This sequence of cause and effect defines the flow of time.
00:00Einstein's theory of special relativity challenges our understanding of mass and time.
08:13A thing's complete existence is defined by its spatial and temporal dimensions.
11:55The flow of time is defined locally for observers and things.
14:25Elementary particles don't experience time; their composites do.
18:00Causal connections and the exchange of signals create an ordered sequence of cause and effect.
