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Relativity Mode
Griz:
--- Quote ---I am not understanding relativity theory completely, but I can say you DEFINITELY NOT understand it.
--- End quote ---
if you say so ... :D
~griz~
Griz:
--- Quote ---Also I think an fast object does not get wider, it shortens (distance is reduced)
--- End quote ---
nothing gets shorter ...
or more massive ...
or slower ...
within ones own intertial frame of reference. ever.
these things only 'appear' to be altered from 'other' inertial frames of reference ...
and why one has to employ the lsuch things as Lorentz transformations to understand
what takes place in another reference frame from within one's own frame of reference.
that's why it's called relativity my friend. ;)
here is a decent spiel on such things:
http://cmtw.harvard.edu/Courses/Phys16/l1_...x/l1_latex.html
~griz~
Numsgil:
Hehe, okay, I'm going to go back and reread alot of those posts. In the mean time:
1. This would be quite optional, and quite pointless. An excercise in idleness really. I have no idea what it would entail or even look like in practice. I have a hard time keeping all of relativity in my head at once. It's really quite confusing from a Newtonian perspective. If nothing else, it would give me a chance to refresh myself in relativity.
The effect on evolution? I wouldn't even venture a guess. I wouldn't even venture a guess that there would be an effect.
2. Since it takes infinite energy to approach the cosmological speed limit, and bots at best can output a finite amount of energy, bots will never achieve infinite mass/length/or anything else like that. Neither can they travel faster than the cosmological speed limit, and thus travel back in time or otherwise do some really weird things that way.
3. Since all inertial (non-accelerating) frames of reference are valid, setting the computer and user as the "stationary observer" is perfectly acceptable. If you don't understand how the twin "paradox" is resolved, this might not make any sense to you.
More when I actually read through all of what you guys think...
Numsgil:
--- Quote ---which brings up another point ...
how is the initial seed to begin the randomization selected?
where is the seed? do we have control of it?
iow ... if we don't begin a simulation with the same seed ...
then any variations we might be experimenting with ...
tryng to determine what changes result in a particular outcome,
are bogus as each run will have a variable that we have no
control over. is there some way that we can select the seed
at the beginning of a simulation ... one we can repeat?
--- End quote ---
Not too long ago I set an option to allow user set random seeds. This is in the second panel of the options page.
You are absolutely right, without it simulations become much less controlable.
Excellent article BTW. Everyone who is slightly fuzzy on relativity should read it as a refresher.
Numsgil:
--- Quote ---There is NO absolute speed in the universe
--- End quote ---
Quite wrong. The speed of light (electromagnetic propogation) is constant for all inertial frames. Thus the speed of light is always absolute.
--- Quote ---(darwinbot only uses an absolute speed relative to the grid)
--- End quote ---
Also true, and since the grid isn't moving, we can say the grid acts as valid inertial frame of reference.
I think, there might be some issues with distance and non-Euclidean space, but now I'm getting into theoretical geometry, which is a horse of an entirely different color.
--- Quote ---Also I think an fast object does not get wider, it shortens (distance is reduced)
--- End quote ---
Depends upon which frame of reference we are considering. Objects that are traveling close to the Speed of light relative to us become forshortened in the direction of motion.
Basically squashed.
--- Quote ---Well I probably should know more details :/, cause I am studying phsics, but I am not that good, soI so not know anymore right now.
--- End quote ---
It's way interesting and mind blowing stuff. On the bright side the math is all really, really, easy.
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