By way of string theory and the , some physicists conjecture that Plato's allegory of the cave approximates the natural world's structure. Tegmark, who regards only the mathematical structure of the universe as real, has been called a "radical" Platonist.= = = Paradox = = =
b aɪ WORD_BOUNDARY w eɪ WORD_BOUNDARY ʌ v WORD_BOUNDARY s t ɹ ɪ ŋ WORD_BOUNDARY θ iə ɹ i WORD_BOUNDARY æ n d WORD_BOUNDARY ð ə WORD_BOUNDARY s ʌ m WORD_BOUNDARY f ɪ z ɪ s ɪ s t s WORD_BOUNDARY k ə n d̠ʒ ɛ k t̠ʃ ə ɹ WORD_BOUNDARY ð æ t WORD_BOUNDARY p l ɑ t oʊ z WORD_BOUNDARY æ l ɪ ɡ ə ɹ ɹ i WORD_BOUNDARY ʌ v ð ə WORD_BOUNDARY k eɪ v WORD_BOUNDARY ʌ p ɹ ɑ k s ɪ m eɪ t s WORD_BOUNDARY ð ə WORD_BOUNDARY n æ t̠ʃ ə ɹ ɹ ə l WORD_BOUNDARY w ɜː l d z WORD_BOUNDARY s t ɹ ʌ k t̠ʃ ə ɹ WORD_BOUNDARY t ɛ ɡ m ɑ ɹ k WORD_BOUNDARY h uː WORD_BOUNDARY ɹ ɪ ɡ ɑ ɹ d z WORD_BOUNDARY oʊ n l i WORD_BOUNDARY ð ə WORD_BOUNDARY m æ θ ɪ m æ t ɪ k ə l WORD_BOUNDARY s t ɹ ʌ k t̠ʃ ə ɹ ɹ WORD_BOUNDARY ʌ v ð ə WORD_BOUNDARY j uː n ɪ v ɜː s WORD_BOUNDARY æ z WORD_BOUNDARY ɹ iː ə l WORD_BOUNDARY h æ z b iː n WORD_BOUNDARY k ɔ l d WORD_BOUNDARY ʌ WORD_BOUNDARY ɹ æ d ɪ k ə l WORD_BOUNDARY p l æ t ə n ɪ s t WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY p æ ɹ ə d ɑ k s WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY iː k w ə l z WORD_BOUNDARY