Ah, the righteous arrogance of youth. I remember what it was like to feel intellectually superior to my college professors, many of whom seemed to be dullards who understood nothing. I grew out of that phase when I started to apply genuine skepticism, not just to others' beliefs, but to my own.
Here is a good example of a young person who fits the profile of adolescent certainty (some people never grow out of this stage). Once a Christian, she lost her faith, followed by a commonly observed flip-flop -- she became a fervent atheist.
Atheists, especially young ones in the midst of existential crisis, do not yet appreciate that their strong stance against religious faith is just faith of another color (i.e., scientism). They are also unable to distinguish between beliefs based on empirically testable ideas vs. beliefs based on faith. And like most true believers in scientism, they become very concerned that one might conduct experiments where the underlying mechanisms are not yet understood. I wish I could say that most students grow out of an over-reliance on the certainty of prevailing theories, but as I mentioned in my previous post, unfortunately many don't.
Her angst centered on an experiment studying precognition. Impossible! Violates natural law! Must be pseudoscience! With that attitude, any evidence offered, however obtained, can only be fraud, or worse.
Of course precognition is not prohibited by physics. The laws of classical and quantum mechanics are time symmetric, and there are many serious articles (this link has just a few examples) available on the topic of retrocausation, which is far more interesting and complicated than a superficial scan might suggest.
Besides my own books (The Conscious Universe is finally in paperback!), I recommend Larry Dossey's new book to get a feel for the art and science of precognition.
But doing one's homework can be so taxing....
I remember the sanctimonious pride that accompanies feelings of certainty, and I'm glad I outgrew it.