# spacetime or only space? [closed]

I was thinking one day, if time doesn't exist and there is only space. I was trying to think about what other measurementunit could be instead of speed(m/s) and acceleration(m/s2) and I came to energy.

If we think on the most fundemental level of physics, the atom, molecules and smaller organisms and think about how these move from one space to another, it requires an amount of energy to come from A to B, or it needs a certain amount of energy to maintain an exponential movement.

But the amount of energy is never constant since the amount needed depends on the organisms energy efficiency or how much energy per calorie the organisms mechanisms can produce.

Could this be fact?

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Can you please say what it means for time to "exist" in a positive way, involving measurements and experiments? Otherwise, the question is ambiguous or meaningless. – Ron Maimon Jan 24 '12 at 23:32
Ron is right, this question is not at all clear enough to get a meaningful answer. It could lead to an interesting explanation of parametrizing paths through spacetime with coordinates other than time, but that would need to be a more focused question. – David Zaslavsky Jan 25 '12 at 8:17
"space" and "time" are words, the 4dimensional "spacetime" is a space like any other, call it "KinnSpace" if you want, then relativity and electromagnetism on your KinnSpace would explain a lot of the observable universe... there is nothing new in what you say, I only see a renaming... – propaganda Jan 25 '12 at 10:08
In other words, and ignoring your remarks about energy, biology, organisms and efficiency, it looks like you just made the transition from [seeing say the movement of a falling ball as a spatial vector position in function of time] to [adding geometric interpretation of time by realizing that time t can be seen as an added dimension to space]. In other words from using elements of {f| f: R->R^3} to structures defined on R^3xR or R^4... which is good for you, but most of us will feel like "been there done that, in elementary school". – propaganda Jan 25 '12 at 10:18
dont be surprised with how people here will treat your questions if they consider it extremely obvious or a prerequisite to physics.stackexchange... – propaganda Jan 25 '12 at 10:18
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## closed as off topic by David Zaslavsky♦Jan 25 '12 at 8:15

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