Showing posts with label NOW. Show all posts
Showing posts with label NOW. Show all posts

Saturday, November 8, 2014

Wormholes, space, time and event horizon

Interestellar is a fascinating movie, with great visuals and intriguing concepts and is a good science fiction movie in a while. stories such as these capture the imagination , and expands our experience. It takes us into possibilities beyond the ones that we are accustomed to, and when stories are told very convincingly toeing along the lines of science pretty closely, we loose track of what is possible and what is not.

Can we travel in time?, are there higher dimensions?,what happens when we get to the event horizon of a black hole? wouldn't it be anomalous if we aged slower than others? can we travel vast distances across the Universe through wormholes? These are fascinating questions, that might very well motivate people to eventually realize these. Some in the near future, some  further down. We cannot rule any of them out. 

When Galileo pointed to the planets and said they were worlds like ours, people thought he was insane. A little spark and burn down an entire forest, ideas are more powerful and leads people on journeys that alter life. It is amazing to see how the world evolves, how change is constant.

As an individual living in a certain point in time, some times one may feel, overwhelmed and  very meek. So many new possibilities, and life and time seems running out. Questions haunt people, such as what would the world be in a century from now?, How will my daughter look like when I am gone? what happens to our beautiful loved ones when they say good bye and leave us for good? The more intensely one contemplates, the more emotional one becomes.

Coming back to wormholes, time travel and black holes, while new discoveries are made, they are but an iteration of this fractal Universe. The more closer you look, the more it generates details. It generates as we look, and not independently. No matter how believable this whole world is, its but an illusion. It breaks down physically into an anomaly of wave and particle, energy and matter and, into a vast nothingness of space.

The only reality is the present Now, and the awareness of I. no past, no future, no here and no there. when time and space dissolves into a constant singularity, travel in present becomes impossible, leave alone travelling in time. Parmenides tried to explain this to the world and his pupil Zeno did very well with his paradoxes. Yet the fascination to chase fractals keeps people engaged and entertained.

Knowing this leaves the mind at rest from the anxieties of missing  a future, resulting in a joyful present.

Friday, May 21, 2010

What Time is it?

Time is a timeless concept. The flow of time. The flow of events. Diving our experiences into the past , the present and the future.

Clocks tell us what time it is now. seconds, minutes, hours, days and so on create boundaries that seem distinct and absolute.

The periodicity of events such as day and night makes time all the more a real and absolute thing. One can say the whole experience of life is a sequence of events. and time is nothing but an interval between events. So we can say the interval between two sun rises constitute a day. Similarly we can specify the position of the sun across the sky at certain locations and define them as events, the intervals between them being hours. We can similarly define finer or courser intervals of time. How absolute is this measurement or definition of time?

This will lead us to abstract this further and define time as simply the interval between states of the Universe. The universe simply moves from state to state. The state being the totality of all things in the Universe such as the diameter, or luminosity or some such property of a star. Or it could be the position of all things in the universe with reference to an origin etc. And any change in the state constitutes movement of time. we could arrive at some particular event which has an apparently independent periodicity and use it to define a uniform movement of time.

All of this implies there are concrete absolute events that occur. let us say we define time as the interval between two sun rises. and if for whatever reason the sun's apparent movement stops for 5 seconds and then resumes, will the suspension be noted? If for instance the entire Universe 'stops' for a certain period of time, will that suspension be noted? No. because we define time as the interval between such events.

This leads us to the question, how do we know the state of the universe has changed? How do we know that the next event has occurred, so that the universal clock can make a tick. The state of the Universe is a set of attributes. and in order to say that this has changed, one has to observe it! Unless the state of the universe is constantly observed, there is no way to figure out if it has changed or not. It could be in suspended animation of 'ages' and yet we will never know.

This implies that if we cannot observe anything at all in this Universe, then it is impossible to talk about time. So, if it was the case that I loose all my power of perception, including the sense of touch, then there is no sense in talking about observing anything. and hence I cannot observe any change whatsoever in anything, and hence there can be no meaning for time. The perception, or observation of the Universe is a must for the very concept of time.

The observer is an important factor. If there were no observer, then there is no observation and hence no Universe. And time is something that happens entirely based on this observation and has no absolute existence. This relativistic view of time thus collapses our notion of years, millennium etc. entirely into our own cognition of the world, without any absolute existence. time is after a sequence of events.

The sequence is a result of our ability to remember. memory creates sequences out of random events. A following, B following C. If I do not remember, then there is no sequence. If we investigate what memory really is, it is just a thought occuring NOW. we recollect the past, but we do that always in the present. We talk about the future, but we do that always in the present. We talk of a hundred years. But we do it only in the NOW. Again, all that we are talking are about sequence of events. the longer this sequence is, longer the time is.The mind using this quantum of events creates its own sense of scale for time. So it is really meaningless to talk about what time it is now.

The fact is we are in the present. and the time is NOW.