Karl Popper

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but pysical theories are free of immunizing and exclude conceivable possibilities

marxism and psychoanalysis are meta physical

Psychoanalysis was ammune to start with strategy and emained so

no longer a science, broke accepting falsification

Marxism was ascience, refuted ,clashed with its predictions

make adistinction:physical and meta physical theroies

the demarcation between science and non science

are tested, refuted and clashed with reality

bold scientific conjectures

but it had some steps 2 the truth

his predictions contradicted Newton

bold,not the truth that decidd the theory

regard his theory as refuted, and it was false

led Popper to the philosophy of science

Einestein's theory of graviation

Kepler

they approximate to truth but they r not true

three laws of planetary motion

detailed predictions of the apperances

they made minor predictions(scientific)

they didnt predict new observable appearences(un scientifc)

the sun was on the center, but it is false

rejected hidden reality behind the appearence

was bold as it clashed with all then accepted views

copernicus's,Aristarchus's conjecture

they try first to find not being wrong

daring if they take a risk of being false

new and daring conjectures

His picture of men of bold ideas

object to his theory of truth

many great scientific changes didn't come through falsification

the opinion of the scientists

rejected to the claims of scientists of seeking truth

said that a scientific statement must be falsifiable

tried to identify the nature of truth

a philosopher