…showed first 75 words of 1838 total…

…showed last 75 words of 1838 total…detectable directly and capable of study by sensitive instruments. Such instruments do not exist because such radiation does not exist in any recognizable form. The more closely ESP has been studied in the laboratory, the smaller the effects become. ESP, if it does exist, is plainly very weak. It is becoming more difficult for its proponents to distinguish between non-existence and an effect that is so vanishingly small that it could have no practical consequences.