Riddle: Transpose of Transpose

T

R

A

N

S

P

O

S

E

Also note that the transpose contains 9 letters and thus may be written as a square matrix:

TRA

NSP

OSE

which could be transposed to give

TNO

RSS

APE

or, reading across, left-to-right and top-to-bottom, 

"TNORSSAPE" 

which is the cipher-text you would transmit if you performed a scytale encryption on the clear-text TRANSPOSE

http://en.wikipedia.org/wiki/Scytale

We can see that the transpose is connected to seemingly unrelated fields, such as physics and cryptography, and must embody something fundamental indeed.