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I'll clear some things up then.
You say that you can touch things with three dimensions and they are tangable. However, without time, they wouldn't be.
Yes, I agree that time is precieved as being different than the first three dimensions, but i do not agree that it's hard for us to accept or understand it as a dimension.
It's more difficult to picture time in our heads, because it's hard to draw it, and we seem to think in 2d, like I had already hinted at in another post, either in here or the other time travel thread.
Anyway, I agree that a lot of aspects about time are very hard to imagine. Time is quite tricky at times, especially when dealing with the speed of light, and time dilation.
However, I think what we are arguing here is the definition of the word dimension.
As I searched through to find some definitions of dimension, I noticed that we are actually both correct. The word dimension has many meanings, as most words do. A dimension is known as something that takes up space, and how we describe how that space is taken up by that object. The description of that would be length, width and height.
However, I also read a lot about how dimension is defined as something that takes up an amount of space-time, and how we describe that. Now, in that situation you would have to use time as a dimension.
Dimension is also defined in physics as "A physical property, such as mass, length, time, or a combination thereof, regarded as a fundamental measure or as one of a set of fundamental measures of a physical quantity".
Therefore, it's all relative to the way you define dimension.
I like to think of time as simply another dimension that is needed for everything to exist. It's easy for me to grasp that fact, because of the way i define dimension.
Anyway, hope that clears everything up.
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