One could argue that cryonics operations defraud people by definition. After all, nobody has ever reanimated a human body that was frozen in liquid nitrogen. Having attended an Alcor conference, and met many people who plan to use Alcor's services, it is clear to me that they have been thinking about whether or not the cryonics option is worth it for a long time. The conference I attended went deeply into the gory details about how bodies are cryonically preserved. In a sense, cryonicists are engaging in a kind of 21st century Pascal's Wager.
