a teacher once told me that when traveling at the speed of light everything becomes flat perpendicular to the velocity... and by flat i mean it becomes 2 dimensional... if he wasn't pulling my leg... then what about movement in the 4th dimension?
if you move through 4d space at the speed of light... wouldn't everything flaten out and become 3 dimensional?
i've also heard that scientists are theorising that there is no such thing as length... that length is only a consept of perseption due to reletivity... i'm probably rehashing the idea completely wrong...
but if legth isn't real... then are we all in fact 2d bodys essentialy preceiving other 2d bodys to be 3d becuase of our slow velocity...
and does that mean that what we think of as the 4th dimension is really only the 3rd dimension? or does all of it simply mean that there is no 1st dimesion?