Where people in general fail in their ability to think critically or scientifically is in the area of con­trols. Endless cause and ef­fect errors and wrong con­clusions have resulted because of our failure to con­sider the many variables in a situa­tion. Testimonials, anecdotes and biased data gathering make up the evidential back­­bone of pseu­do­sci­ence, paranor­mal be­liefs, religions and quack­ery. But testi­monials and anecdotes do not a science make.