Article Source: rationalisingtheuniverse.org
What do we want?! Time Travel! When do we want it?! It’s irrelevant.
Time, by far my favourite abstract notion to think about whilst also the one that can easily cause the most damage to one’s sense of reality if over-dwelled on. This post will cover thoughts on our perception of time and then move on to consider sci-fi’s ever favourite tool, time travel; the common misconceptions, problems and theoretical consistent possibilities.
As human beings our perception of the passage of time is fixed, it is an ever forward-flowing river from which we can never escape. Einstein’s general relativity teaches us that time is a dimension, as are the three of space, however although we are able to freely traverse the spatial dimensions (we can go up/down, backwards/forwards, left/right) we cannot exercise such control in time. We are confined to travel ever ‘forward’ through this dimension. From our limited human perception we…
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