hakman123: Perhaps you have to be a maths geek to appreciate it - but the fact that 3 esoteric quantities (e, i and pi) can so perfectly be combined to give a result of exactly 1 is mind blowing.
It's -1, as referenced in the Simpsons* and explained by this geeky mathematician.
* "memorable episodes such as “Bart the Genius” and “Homer3”, weaves in mathematical stories that explore everything from pi to Mersenne primes, from Euler’s equation to the unsolved riddle of P v. NP, from perfect numbers to narcissistic numbers, from infinity to even bigger infinities… and much more."