As many AF readers know, Carl Brannen
has been diligently
trying to solve the magic matrix decomposition problem for $3 \times 3$ unitary matrices. Now Lubos Motl
very helpfully decided to solve
this problem for Carl, also providing witty commentary along the lines of
Let me give you some examples because they’re easier for you than mathematics. Math class is hard, Barbie.
Unfortunately, he made a very elementary mistake and failed to solve the problem after all, but was somewhat annoyed, it would seem, when Carl pointed this out to him. I am informed that Carl has now been banned from Motl's blog. It is a shame that we cannot continue this fruitful collaboration because, as Carl often points out, Motl has made lasting contributions
to physics with his concept of tripled Pauli statistics. We will just have to continue playing with our simple matrices alone.