In addition, one of the major flaws of the scientific endeavor is its overconfidence in the human senses or its overly optimistic empiricism. The reality is that each of the five senses can be deceived.
• Sight: Deception occurs in the form of a mirage, dream, projective image, and blindness or color blindness.
• Hearing: Time delays from sight and from the Doppler effect.
• Touch: The reliability of human touch is contingent upon the condition of the human nervous system and to our previous environment.
• Smell: Our sense of smell can be deceptive as in the instance of when one has a cold. While this is a blatant instance of such deception the likelihood that this form of sensory deception can take place on other unconscious levels is highly probable.
• Taste: Human taste varies from individual to individual as with such things as saltiness, sweetness, and bitterness.
Each of these instances prove that human senses are not always reliable and dependable and are vulnerable to deception certainly on a conscious level and possibly to a greater extent on an unconscious level. Therefore, scientific objectivity may not be as achievable as is claimed by the scientific community.
