Proposition
Proposition: There are at least sixteen types of people in the world: (1) those who have the mind to doubt what is being said and to conduct research about it by oneselves; (2) those who have the mind to reasonably interpret the results of their research; (3) those who have the mind to make decisions accordingly; (4) those who have the mind to verify the issues at a later time for review. Proof: 2^4=16. Example: For (1), there have been two types of people: those who come up in mind to calculate ((61+169)-(311+9))/(61+169) and those who do not. For (2), there have been two types of people: those who reasonably interpret the result -0.39 and those who do not. For (3), there have been two types of people: those who make decisions in accordance with the interpretation about -0.39 and those who do not. For (4), there have been two types of people: those who relate the calculations from similar arguments both with the law of large numbers and with the central limit theorem and th...