LOL!
A hedge fund manager described it as being a mental ninja and seeing your problems in slow motion, after mastering the technique.
Does it require a specific mantra? Does it have to be in sanskrit?
Mental ninja sounds great.

You could use a mantra but just focusing on your breathing, in and out, would have the same effect. Not sure if this is an "appropriate" TM-teaching though but opinions seem to differ.
There's much nonsense regarding TM, such as keeping your mantra secret and other stuff. Just find a way you enjoy and go for it, whether it be TM or some other type of meditation.