Of course, reality is perfect. But in this case, the person does not
have the proper tools to really measure reality with any accuracy at 
all. The fields he wants to know about are not mysteries of the 
universe, they are almost trivial field modeling examples.
http://drsstc.com/~sisg/files/SISG-coil/Field-B.gif
http://drsstc.com/~sisg/files/SISG-coil/Field-Energy-1.gif
http://drsstc.com/~sisg/files/SISG-coil/Field-Energy-2.gif
http://drsstc.com/~sisg/files/SISG-coil/Field-Energy.gif
http://drsstc.com/~sisg/files/SISG-coil/Field-Flux.gif
http://drsstc.com/~sisg/files/SISG-coil/FieldConeNew.gif
http://drsstc.com/~sisg/files/SISG-coil/FieldPlot.jpg
MaxwelSG was used in the design of the SISG to determine where to put 
the transformers in relation to the primary coil. The models were 
tested against reality there:
http://drsstc.com/~sisg/files/SISG-coil/PrimaryQ-10.jpg
http://drsstc.com/~sisg/files/SISG-coil/SISG-TPtest.pdf
http://drsstc.com/~sisg/files/SISG-coil/SISG-TPtest-FollowUp.pdf
The models can be extended to do fun things one normally could not do 
well:
http://drsstc.com/~sisg/files/SISG-coil/StreamerFun.gif
Terry