HYPOTHESIS-DRIVEN EVENT SPACE DISCOVERY
Model: model.bin (6.02 bpc, undertrained)

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HYPOTHESIS TEST: H1: Vowels
Characters: ['a', 'e', 'i', 'o', 'u']
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Pairwise cosine similarities:
  'a' vs 'e': 0.9868
  'a' vs 'i': 0.9861
  'a' vs 'o': 0.9841
  'a' vs 'u': 0.9922
  'e' vs 'i': 0.9909
  'e' vs 'o': 0.9892
  'e' vs 'u': 0.9880
  'i' vs 'o': 0.9859
  'i' vs 'u': 0.9894
  'o' vs 'u': 0.9911

Mean within-class similarity: 0.9884
Mean cross-class similarity (vs ['t', 'n', 's', 'r', 'h']): 0.9860

✓ SUPPORTED: Within-class sim (0.988) > cross-class (0.986)

Consistently ACTIVE neurons (>0.8, std<0.2): [34]

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HYPOTHESIS TEST: H2: Common Consonants
Characters: ['t', 'n', 's', 'r', 'h']
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Pairwise cosine similarities:
  't' vs 'n': 0.9644
  't' vs 's': 0.9879
  't' vs 'r': 0.9935
  't' vs 'h': 0.9926
  'n' vs 's': 0.9821
  'n' vs 'r': 0.9652
  'n' vs 'h': 0.9817
  's' vs 'r': 0.9903
  's' vs 'h': 0.9950
  'r' vs 'h': 0.9908

Mean within-class similarity: 0.9844
Mean cross-class similarity (vs ['a', 'e', 'i', 'o', 'u']): 0.9860

✗ NOT SUPPORTED: Within-class sim (0.984) <= cross-class (0.986)

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HYPOTHESIS TEST: H4: Punctuation
Characters: ['.', ',', '!', '?']
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Pairwise cosine similarities:
  '.' vs ',': 0.9984
  '.' vs '!': 0.9993
  '.' vs '?': 0.9994
  ',' vs '!': 0.9992
  ',' vs '?': 0.9992
  '!' vs '?': 0.9999

Mean within-class similarity: 0.9992
Mean cross-class similarity (vs ['a', 'e', 'i', 'o', 'u']): 0.9858

✓ SUPPORTED: Within-class sim (0.999) > cross-class (0.986)

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HYPOTHESIS TEST: H5: Digits
Characters: ['0', '1', '2', '5', '9']
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Pairwise cosine similarities:
  '0' vs '1': 0.9995
  '0' vs '2': 0.9995
  '0' vs '5': 0.9995
  '0' vs '9': 0.9995
  '1' vs '2': 0.9994
  '1' vs '5': 0.9996
  '1' vs '9': 0.9996
  '2' vs '5': 0.9998
  '2' vs '9': 0.9998
  '5' vs '9': 0.9998

Mean within-class similarity: 0.9996
Mean cross-class similarity (vs ['a', 'e', 'i', 'o', 'u']): 0.9865

✓ SUPPORTED: Within-class sim (1.000) > cross-class (0.986)

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SUMMARY
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  H1: Vowels: SUPPORTED (sim=0.988)
  H2: Consonants: NOT SUPPORTED (sim=0.984)
  H4: Punctuation: SUPPORTED (sim=0.999)
  H5: Digits: SUPPORTED (sim=1.000)