Is there the concept of someone who sees futures that shouldn't exist or shouldn't be?
I know about the third eye.
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Not clear what exactly your question is. I understood it relates to superior perception or faculties.
Nostradamus and Pothuluri Veerabrahmam garu had a given faculty to see the future most probably by birth or were gifted through a blessing transferred by a more spiritually powerful person or deity. The former recorded his vision and the latter communicated it through word of mouth.
The ability may have been further developed by Yogic sadhana.. or spinal kundalini awakening.
From a physical viewpoint neural chemistry cannot be ruled out, it may be involving the pineal gland. Creativity by endorphin release and neuro-transmission (e.g.,the Buddha) by fasting, altered consciousness and perceptive states by drug administration are not unknown.