"Male falsetto is certainly not natural, but, I understand, the product of hormonal imbalance--or the surgical removal of a certain piece of equipment"   You" understand" that? Indeed?

Since it seems you actually are serious about it--not just pulling the collective Mudcat leg--your statement bears an amazing resemblance to total drivel.

Surely you wouldn't mind giving us evidence for your assertion. Just where does your "hormonal imbalance," etc. theory come from? It would be appreciated if science and logic were involved in your answer.   

Congratulations, by the way on having your wisdom on falsetto cited on Google--proving just how reliable information on the Net can be.   Caveat lector, indeed.