The existence of consciousness can be determined by the following tests:
a) External awareness in terms of the surrounding environment
b) Spontaneous response to external stimuli without any artificially programmed stimulus or implanted manipulations
c) Self-propelled motion without any artificially programmed stimulus or implanted manipulations
d) Presence of life-breath embedded in the body
e) Self-awareness in terms of the conscious feeling of “I” and “Mine”
f) Self-experience of bodily pain or pleasure
While the existence of first four can be ascertained by another conscious being, the last two are intrinsic to the particular conscious being as these are based on one’s own experience which is not explicitly known to others.
Consciousness of a different being can be established by another being having consciousness by means of the tests enumerated above. Thus we cannot say that consciousness can neither be observed nor its existence proved or disproved.
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