Hard Problem

Hard problem may refer to:

  • Hard problems in computational complexity theory
  • The hard problem of consciousness: explaining why we have qualitative phenomenal experiences

Famous quotes containing the words hard and/or problem:

    My Phillis hath prime-feathered flowers
    That smile when she treads on them;
    And Phillis hath a gallant flock
    That leaps since she doth own them.
    But Phillis hath so hard a heart—
    Thomas Lodge (1558?–1625)

    If a problem is insoluble, it is Necessity. Leave it alone.
    Mason Cooley (b. 1927)