Time travel is physically possible. The laws of physics and mathematics allow for time travel. We however have not mastered it, and the consequences of time travel are up for debate, and is one of the things that philosophers work on.
We can do a sort of time traveling when we do Astronomy. When we look at the object, the light that left that star or galaxy has traveled a long time. We measure the time it takes to travel in units of light-years, the time it takes light, which travels at just over 1 billion km/hr, to travel in one year. When we see light from the Sun, we see how the Sun looked 8 minutes ago (because it takes 8 minutes for the light to reach us). The nearest star to us takes 4 years (or 36 trillion km away), so we see it 4 years in the past.
I am surprised by Brad’s answer, I have always understood that physics argued against the possibility of time travel. He is a physicist, so I believe him, but I would like to know more!
As Brad has already mentioned, it is theoretically possible to time travel. Perhaps Nostradamus already found a way but won’t tell anyone about it but made his predictions instead (most likely not). We are already travelling in time as this second is one second later than the previous second.
Is there an advantage to ‘bounce’ around time just to see what is there? Moving backwards in time is already possible by reading history books (although accuracy could be questioned) while you can create what is going to happen in the future. It would be so frustrating to know all the cool things that is available in the future but you will not get to use it when you get back because it hasn’t been invented yet.
@Brad My understanding is rudimentary (and probably well out of date), but I thought the paradigm was that it was fundamentally different. This is why I’m in biology. 🙂
Time travel is physically possible. The laws of physics and mathematics allow for time travel. We however have not mastered it, and the consequences of time travel are up for debate, and is one of the things that philosophers work on.
We can do a sort of time traveling when we do Astronomy. When we look at the object, the light that left that star or galaxy has traveled a long time. We measure the time it takes to travel in units of light-years, the time it takes light, which travels at just over 1 billion km/hr, to travel in one year. When we see light from the Sun, we see how the Sun looked 8 minutes ago (because it takes 8 minutes for the light to reach us). The nearest star to us takes 4 years (or 36 trillion km away), so we see it 4 years in the past.
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What Brad said 🙂
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I am surprised by Brad’s answer, I have always understood that physics argued against the possibility of time travel. He is a physicist, so I believe him, but I would like to know more!
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As Brad has already mentioned, it is theoretically possible to time travel. Perhaps Nostradamus already found a way but won’t tell anyone about it but made his predictions instead (most likely not). We are already travelling in time as this second is one second later than the previous second.
Is there an advantage to ‘bounce’ around time just to see what is there? Moving backwards in time is already possible by reading history books (although accuracy could be questioned) while you can create what is going to happen in the future. It would be so frustrating to know all the cool things that is available in the future but you will not get to use it when you get back because it hasn’t been invented yet.
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