A Mathemetician (M) and an Engineer (E) attend a lecture by a Physicist.
The topic concerns Kulza-Klein theories involving physical processes
that occur in spaces with dimensions of 9, 12 and even higher. The M
is sitting, clearly enjoying the lecture, while the E is frowning and
looking generally confused and puzzled. By the end the E has a terrible
headache. At the end, the M comments about the wonderful lecture. The
E says "How do you understand this stuff?"
M: "I just visualize the process"
E: "How can you POSSIBLY visualize somrthing that occurs in
9-dimensional space?"
M: "Easy, first visualize it in N-dimensional space, then let N go to
9"
