A proponent of ESP claims that ESP shows up only when the vibrations are right and that there is no way to know whether the vibrations are right except to see whether ESP shows up. What is wrong with this theory from a scientific standpoint?

Question

Quizplus · Accepted Answer

A theory must be able to be tested and potentially proven false in order to be considered scientific. This theory of ESP cannot be falsified because there is no way to test whether the vibrations are "right," making it unscientific.

A Proponent of ESP Claims That ESP Shows Up Only