The present is a period of time that occurs now, and as it's time - which can be measured - shouldn't it be possible to define and measure now?
Does now have no interval or is it's interval variable?
I only ask out of pure curiosity and I thought this is the best place to ask such...
From my understanding the image we see of a star isn't a reflection of how that star is now. The image we are seeing of those stars is millions, or billions of years old because it's taken that long for the light from the star to reach us. Is this correct?
But, let's say we could travel to...
I was watching a video on the arrow of time, and it got me quizzing ... does the present i.e. now actually exist?
The past can be said to be something that happened at a certain time ... i.e. a second ago, a minute ago etc. The future can be said to be something that may/will/could happen and a...