[QUOTE="TDSE"][QUOTE="Frame_Dragger"] This, from someone who wanted units? Yeah, it was obvious to me at least, but I wouldn't assume that it is to anyone. I also wouldn't apply standards to others that you don't attempt to meet yourself. I think it was obvious as well that TF626 was asking what the maximum velocity of dark matter is, or if it represents an absolute reference... or when you gave him a non-answer did not see that?Frame_Dragger
Why would you assume he was asking that? I mean why would anyone who doesn't know about special relativity even have such a concept in their mind? The fact that he seemed to think one can meaningfully talk about stuff being stationary without providing a reference frame doesn't exactly support your inference. For the same reason you assumed that people who presumably know nothing about SR/GR would understand that travel forward in time is ubiquitous, and only the reverse is expressly forbidden, or that you meant time dilation relative to your origin point, etc. What can I say, you seem as though you like precision, but without offering it yourself. I generally try to not make the same mistakes I'm chewing someone else out for, so maybe it's just a matter of taste? I also enjoy points of reference, and saying, "far into the future" without discussing the mechanism or in relation to a point in time is both lacking in a frame of reference, AND generally uninformative unless you DO know about time dilation a la SR/GR. Somehow I doubt that most people would consider a rate of one second per second to constitute time travel. Coincidentally I recall watching a program by Stephen Hawking aimed at a lay-audience in which he made a similar point to me and didn't clarify that the travel into the future is as measured in the reference frames of earth/your destination. If it's good enough for him, it's good enough for me.
[QUOTE="Frame_Dragger"] This, from someone who wanted units? Yeah, it was obvious to me at least, but I wouldn't assume that it is to anyone. I also wouldn't apply standards to others that you don't attempt to meet yourself. I think it was obvious as well that TF626 was asking what the maximum velocity of dark matter is, or if it represents an absolute reference... or when you gave him a non-answer did not see that?Why would you assume he was asking that? I mean why would anyone who doesn't know about special relativity even have such a concept in their mind? The fact that he seemed to think one can meaningfully talk about stuff being stationary without providing a reference frame doesn't exactly support your inference.
[QUOTE="TDSE"][QUOTE="TF626"]If light travels at the speed of 186,000, how fast does dark matter travel if at all?Frame_Dragger
Relative to what? Also if you can go arbitrarily close to the speed of light, you can travel as far as you want. But as a result, you'll end up far into the future. Oh and use units for Christ's sake. You can remain stationary and end up "far into the future" if you live long enough. Speaking of relative measurements, when you talk about what I assume is time dilation, you may want to refer to the relative clocks from your origin point and relatively "slower" moving objects vs. you.Travel forward in time isn't in any way prohibited, but if you want to get back to when you started, that IS verboten.I thought it was pretty obvious what I meant.
Log in to comment