🕒Time is a dimension in physics and is treated as such by Albert Einstein.
⏳The concept of 'now' is observer-dependent, and different observers can have different notions of 'now'.
🌌Causally disconnected events can occur simultaneously for some observers.
🔁The block universe theory suggests that all times exist simultaneously.
🌀Time is not a universal parameter and can vary based on the observer's frame of reference.
Is time the same for everyone and every object?
—No, time is not the same for everyone and every object. Time is observer-dependent, and different observers can have different notions of 'now' based on their frame of reference.
Can two events occur simultaneously for one observer but not for another?
—Yes, causally disconnected events can occur simultaneously for some observers. This means that events that are not causally connected can be perceived as happening at the same time by some observers but not by others.
What is the block universe theory?
—The block universe theory suggests that all times exist simultaneously. It means that past, present, and future all exist in a timeless block, and time doesn't come into being or change.
How does Einstein's theory of relativity impact our perception of time?
—Einstein's theory of relativity revolutionized our understanding of time by treating it as a dimension. It introduced the concept of 'now' being observer-dependent and showed that time is not a universal parameter.
Can time travel be possible based on Einstein's theories?
—Einstein's theories of relativity do not explicitly allow for time travel in the sense of going back or forward in time. However, they do suggest the possibility of time dilation and the ability to experience time differently based on the observer's frame of reference.
00:00Time, both as perceived by humans and as understood in physics, is a complex concept.
02:32Albert Einstein treated time as a dimension, similar to space, revolutionizing our understanding of it.
06:53The concept of 'now' is observer-dependent, with different observers having different notions of 'now'.
11:20Causally disconnected events can occur simultaneously for some observers.
12:38The block universe theory suggests that all times exist simultaneously, with past, present, and future coexisting.
