Related:

• Fortunately, the responsibility for providing evidence is on the part of the person making the claim, not the critic.
  It is not the responsibility of UFO skeptics to prove that a UFO has never existed, nor is it the responsibility of paranormal-health-claims skeptics to prove that crystals or colored lights never healed anyone....
• Extraordinary claims demand extraordinary proof. There are many examples of outsiders who eventually overthrew entrenched scientific orthodoxies, but they prevailed with irrefutable data.
  More often, egregious findings that contradict well-established research turn out to be artifacts....
• Absence of Evidence is not Evidence of Absence -- UFO expe
• The inability to benefit from feedback appears to be the primary cause of pseudoscience.
  Pseudoscientists retain their beliefs and ignore or distort contradictory evidence rather than modify or reject a flawed theory....
• There is no conclusive evidence about what happens to old skeptics, but their future is doubtful.
• Extraordinary claims demand extraordinary proof. There are many examples of outsiders who eventually overthrew entrenched scientific orthodoxies, but they prevailed with irrefutable data.
  More often, egregious findings that contradict well-established research turn out to be artifacts....
• While it cannot be proved retrospectively that any experience of possessio
  conversion, revelation, or divine ecstasy was merely an epileptic discharge, we must ask how one differentiates "real transcendence" from neuropathies that produce the same extreme realness, profundity, ineffability, and sense of cosmic unity....
• Evolution is as much a fact as the earth turning on its axis and going around the sun.
  At one time this was called the Copernican theory...
• Another writer again agreed with all my generalities, but said that as an inveterate skeptic I have closed my mind to the truth.
  Most notably I have ignored the evidence for an Earth that is six thousand years old....