Is dr who real ,time and space question (red wine inspired)

moon man

moon man

moon man

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Ok if the stone age no longer exists ,and 2 seconds ago no longer exists ,or a fraction of a second ,assuming the future dosnt exist the only moment that is real is now but as we have a delay in processing the light from the eye we are in a world that dosnt exist and how long is now ,it cant have a length can it ?
new paragraph needed ,so im drawn to the block universe theory ,everything that has happened or has already happened is in the block,as we are in a certain place now but other places exist we are also in a certain time but other times exist ,thinks of a thread title ................
meaning of life please ? (awaits a certain number from hitchhikers guide)
 
moon man said:
Ok if the stone age no longer exists ,and 2 seconds ago no longer exists ,or a fraction of a second ,assuming the future dosnt exist the only moment that is real is now but as we have a delay in processing the light from the eye we are in a world that dosnt exist and how long is now ,it cant have a length can it ?
new paragraph needed ,so im drawn to the block universe theory ,everything that has happened or has already happened is in the block,as we are in a certain place now but other places exist we are also in a certain time but other times exist ,thinks of a thread title ................
meaning of life please ? (awaits a certain number from hitchhikers guide)
Click to expand...

Think I know what you are getting at, but from my meagre understanding, the present time is the only reality, and our perception of the past is relative to how far away from the source you are (i.e when you look into space at a far away object what you see at a particular moment is what happend in the past depending on how long the light has taken to reach your eye).

Of course - on distances within our solar system this is almost imperceptible due to how bloody fast light travels.

As an example, light travels about 6 trillion miles a year, so - if you were 6 trillion miles away from Earth and was able to somehow get a photo of the Earth, you would be seeing the Earth as it looked a year ago, but relatively, you would be in the same time frame as the persons on Earth.

Thus - we are all in the same time frame across the whole universe simultaneously, but our perception of the time period in view at a particular moment is relative to your distance.

(Note - this is assuming a stationary observer, it all gets really messed up if the observer, or the object being observed is travelling at or towards the speed of light).

Or have I got the wrong end of the stick of your post?
 
if we were in a simulation they wouldn't run it in real time!!!! they would do like we do and run millions of them at super speed

so I suspect our slow passing off time means we are actually real
 
Just to throw more confusion into the mix...

the present we see isn't a consistent time because we can see things at different distances and so we're actually looking at the past to varying extents.

While we're at it, what is time anyway?

I need more wine, obviously.
 
2004typer said:
Think I know what you are getting at, but from my meagre understanding, the present time is the only reality, and our perception of the past is relative to how far away from the source you are (i.e when you look into space at a far away object what you see at a particular moment is what happend in the past depending on how long the light has taken to reach your eye).

Of course - on distances within our solar system this is almost imperceptible due to how bloody fast light travels.

As an example, light travels about 6 trillion miles a year, so - if you were 6 trillion miles away from Earth and was able to somehow get a photo of the Earth, you would be seeing the Earth as it looked a year ago, but relatively, you would be in the same time frame as the persons on Earth.

Thus - we are all in the same time frame across the whole universe simultaneously, but our perception of the time period in view at a particular moment is relative to your distance.

(Note - this is assuming a stationary observer, it all gets really messed up if the observer, or the object being observed is travelling at or towards the speed of light).

Or have I got the wrong end of the stick of your post?
Click to expand...


what i keep thinking about (with only caffeine in my bloodstream now) is where the past goes ,it seems the moving through time feeling is an illusion and i just find the different theory's so interesting especially the block universe ,the thought that every event that every happened is just at an inaccessible point in space time ,but also every future event but i would rather not believe our demise is already plotted maybe the expanding block universe theory is more appealing .
im just really into this sort of stuff
https://plus.maths.org/content/what-block-time
 
moon man said:
what i keep thinking about (with only caffeine in my bloodstream now) is where the past goes ,it seems the moving through time feeling is an illusion and i just find the different theory's so interesting especially the block universe ,the thought that every event that every happened is just at an inaccessible point in space time ,but also every future event but i would rather not believe our demise is already plotted maybe the expanding block universe theory is more appealing .
im just really into this sort of stuff
https://plus.maths.org/content/what-block-time
Click to expand...

Same here - just about to have a Coffee.

Good read that link and I find it all fascinating as well.

The question of where the past goes is interesting - in theory a moment in time that has happened will be visible from somewhere for infinity (if the universe is infinite or expanding faster than the speed of light), so we could probably say that it exists forever, or the relative perception of that moment does.

Physically though, I think the past ceases to exist immediately, because once a moment has passed the opportunity to interact with the moment will have gone, and any actions will forever be engrained in the light travelling to the observer playing out the same way forever.
 
Wow - my brain hurts!

But - I'm not sure on the seeing into the future "slice".

Take the example in the video where the Alien is travelling towards the Earth - I'd agree that the Alien will be seeing further along the slice - but the key thing I'm my mind is the position the Alien will see on the slice will still be in the past at our point of perception.

As the Alien travels closer to us I'm convinced their perception of the relative time point will slowly marry to the same point in time that we are currently at - hence - their view will steadily align with ours, and on arrival they will be in the exact same moment.

What is mad though - the perception of time relative to us, and the Alien while travelling will differ (think of the Twins Paradox).
 
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