German psychologist Lingermann has a famous tug-of-war experiment: when the number of tugs-of-war gradually increases, each person uses less and less power. It does not achieve the effect of cumulative power. This phenomenon is called "Linger Affected ", also known as" social escape ". According to the above definition, Which of the following are not part of the Lingerman effect:. ['—Crowds watching someone in need, but few people really help out.', 'Many people think that fortune-tellers say "very accurate" after asking fortune tellers.', 'Chickens cannot lay eggs. People are blind.', "Divide male college students into groups of 2, 4, and 6 and ask them to shout loudly. Record the volume of each person and find out that the individual's volume decreases as the number of groups increases."]