2d is length and width, not depth. So if I have an object in 2d (0 depth), then it would be non-existent, right? Paper, graphite, etc. have depth even if it is extremely small. Here is my own theory on the 2cnd dimension:The first thing that comes to my mind would be light, but it is made up of waves which have length width and depth. But I thought for a while and realized that color has no depth, but physically exist in our world. Color being how much light is reflected from an object (or how much of one or more types of light waves are absorbed by an object) then, is 2d. So another question I have is, would 2d be measured by length and width, or something like temperature and frequency?
I would ask anybody leaving comments to bear in mind that the OP is a potential physicist, at some time in the future and would probably appreciate encouragement. Thanks........ Count_to_10