At the same time, at the quantum level, the designer/creator/simulator has easy access to information via entanglement (if a designer/creator/simulator indeed exists)
Mission accomplished!
Originally posted by: K.Universe.
Well, I don't need to tell you this but just as a background: speed of light is finite even if it is the fastest in the universe. When we see very distant objects, we are in fact looking back in time. When we look at the Sun, we are looking at Sun as it existed 8 minutes ago. I know you know all this.
So if I travel at the speed of light, and if I am an observer located on an object 1 light year away from the earth, I could potentially look at what happened on earth an year ago. If I am an observer and I can travel faster than light, then, theoretically, I could start observing as well as replaying events that occurred on the earth in the past. All I have to do is "jump" to different locations in space to observe what is happening on earth and/or what happened on earth up until now. I could see how life evolved on earth as well as replay events during evolution by being faster than light and traveling to "appropriate" locations in space. That is pretty much the same as time traveling but like I said we could only observe the past, not interact with past.
Originally posted by: BirdieNumNum
yes, but there is no time dimension in nature IMO so how can time travel make sense even from a theoretical sense.Again, spacetime is just a historical collection of 3D objects. Nothing can move in it.
Originally posted by: K.Universe.
On the contrary, *everything* in it is moving. No? Because there is no absolute frame of reference?
What am I missing in your question?
Originally posted by: BirdieNumNum
when people talk of time travel, they are talking about actually being able to go back to the past. At any point in "space", all we have is an ever-changing present. There's no arrow of time. Because time cannot change.
Originally posted by: BirdieNumNum
One guy on the net put it like this-
What has been has indeed objectively been and is no more. What will be, objectively is not and has not been (and, in fact, is not even fully determined, according to quantum indeterminacy). All physical systems ride the universal wave of becoming. Any awareness (ours or that of other intelligences) of past and future reflects the objective wave of becoming. There is no problem of "the arrow of time." There simply is no arrow of time, as if time could go one "way" rather than another. That metaphor is an unfortunate result of spatializing time. The picture of time as a line along which one might travel in one direction or the other is a conceptual disaster. Time is becoming. Becoming is change. The undoing of a change is also a change. There is no "unbecoming.
Originally posted by: K.Universe.
Well, I was talking about time travel in the macroscopic sense. At the quantum level, yes, there is no arrow of time (doesn't appear to be there probably because our observations are limited by the speed of light)
The "present" you mentioned depends on the reference frame. Now is a good time to brush up on special relativity, CC :)
That's bath salts talking.
Originally posted by: K.Universe.
I am sorry for not understanding the context of "electron decay" but could Freethinker or V.W please walk me through it?
Originally posted by: Freethinker112
I have already edited my post stating that I was wrong. I got misinformed due to the way Wikipedia writes its articles. It said that the half life of electron is 10^26 years, which I thought meant that they may decay after that. But on further reading after being corrected by Vintage, I say now that electrons can't decay.
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