"Charlatans" a deeper look

In usage, a subtle difference is drawn between the charlatan and other kinds of confidence people. The charlatan is usually a salesperson. He does not try to create a personal relationship with his marks, or set up an elaborate hoax using roleplaying. Rather, the person called a charlatan is being accused of resorting to quackery, pseudoscience, or some knowingly employed bogus means of impressing people in order to swindle his victims by selling them worthless nostrums and similar goods or services that will not deliver on the promises made for them. The word calls forth the image of an old-time medicine show operator, who has long left town by the time the people who bought his snake oil tonic realize that it does not perform as advertised.

In reported spiritual communications, a charlatan is a person who fakes evidence that a spirit is "making contact" with the medium and seekers. This has been challenged successfully by skeptics who wrote passwords and gave them to people of trust, containing a password that should be spoken by the person if he ever tried to make contact, to validate the truth of the claim. No such claim has been verified. Notable people who have successfully debunked the claims of purported supernatural mediums include Brazilian writer Monteiro Lobato and magician Houdini.

Synonyms for "charlatan" include "mountebank", "shyster", and "quack". "Mountebank" comes
from the Italian montambanco or montimbanco based on the phrase monta in banco - literally
referring to the action of a seller of dubious medicines getting up on a bench to address his audience of potential customers."Quack" is a reference to "quackery" or the practice of dubious medicine.

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