indeterminacy

n. uncertainty, lack of definition, lack of clarity, ambiguity; indecisiveness, undecidedness, lack of resolution

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Noun
1. the quality of being vague and poorly defined
(synonym) indefiniteness, indeterminateness, indefinity, indetermination
(hypernym) uncertainty, uncertainness
(hyponym) inconclusiveness

Rzecz. nieokreśloność

Indeterminacy Used in science to mean that the investigation of intra-atomic phenomena has (for the time being) reached the limits of human power to determine the behavior of a particle. The Heisenberg principle of uncertainty states that it is impossible to increase the accuracy of measurement of the velocity of a particle without by this very observational act introducing an uncertainty into the determination of its position. The attempt to represent phenomena as a chain of cause and effect must lead sooner or later to a point where we can no longer trace the cause -- not because causes vanish, but because of the imperfection of our observation and of our instruments, so that the chain of causation continues until we lose track of it because of incapacity. Hence we are unable to predict the behavior of a particle. Subsequent investigation may enable us to carry the chain of causation farther, but the process cannot go on indefinitely without carrying us beyond the physical plane. The standards of measurement successfully adopted for molar physics and for phenomena within terrestrial limits have proved inadequate for the definition of phenomena outside those limits; and both theory and experiment show that these standards are largely conceptual and must be changed to suit new conditions.
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