"What do you think of the black pepper chicken fillet? Or Orleans roast wings are also good. ”

Wang Xu was enthusiastic about collecting special packages, and from time to time he joked with Chen Bo.

"You decide, I'll be responsible for paying for it anyway."

Chen Bo deserved to be weak, he thought he could eat a free lunch, but he didn't expect that he was the lamb to be slaughtered.

"Hey, that Xu Dong, what do you want to eat?" Wang Xu couldn't make up his mind and asked Lin Dong's opinion.

Lin Dong looked surprised and said, "Huh? Do I have a share too? But let me correct it first, I don't have the surname Xu, my surname is Lin, Shuangmulin. ”

"You ask the gold owner, Chen Bo has a big heart, just like his fat layer." Wang Xu dug the pit and directly pushed Chen Bo inside.

"Okay, order so many, and it's okay to have more than one person." Chen Bo couldn't save face, so he had to suffer a dumb loss.

"Then I want the Big Mac package." Lin Dong was not subtle, and his familiar tone seemed to be an old friend who had known each other for many years.

"Ouch, I'm pretty good at choosing, and I'll be the most expensive one when I pick it." After Wang Xu finished chattering, he checked on the left side of the menu bar and successfully added it to the shopping cart.

"It's not done." Chen Bo complained.

"Almost, I'm wondering which store's milk tea to drink, Shuangmudong, do you want to take a look?"

Wang Xu put the phone on the table, gently pushed, and slid to the other party.

"Is oolong milk tea okay?"

"Of course, help me order a copy, and I'll pay for your brother Bo when I'm done." Wang Xu became the shopkeeper and lived a comfortable life.

"One meal ate my food expenses for two days, and my flesh hurts." Looking at the long list of payment bills, Chen Bo's heart was dripping blood.

"Forget it, use my account to pay, the membership level is high, the discount is large, you will transfer the money back to me then." Wang Xu checked the shopping cart and re-added the previous dishes.

"Shenghui 87 yuan."

"It's nearly 30% cheaper." Chen Bo happily returned the money to the other party.

"yes, that's why I can eat that much." Wang Xu shrugged.

The answer published by the teacher is contrary to Chen Bo, and he doesn't know what the problem is, maybe the indicator parameters are too idealistic when the deduction and calculation are too ideal, which is seriously inconsistent with the actual situation.

According to the official statistics released by Mr. Li, the survival rate of players equipped with [Bagua Array] is nearly 30% higher than that of equipped [Fuji Armor], which is diametrically opposed to the expected return.

But no one in the audience objected to this, and seemed to acquiesce to this statement.

Teacher Li Hui asked, "Do any students know why?" ”

Wang Xu muttered: "Because the risk and return brought by the [Bagua Array] is unknown, and the risk and benefit of [Fuji Armor] is known, in the actual combat process, no one will be stupid to output useless work." ”

"I heard some students mention the issue of risk and return, and the idea is right."

The voice was a little small, and Li Hui only heard the key words clearly.

Lin Dong humbly asked: "The unknown of risk and return? What impact does that have on the outcome. ”

Wang Xu explained: "Human instinct is to seek advantages and avoid disadvantages, and when you know that your existing output means cannot cause damage to players wearing [rattan armor], you will naturally not waste cards on him." ”

"On the contrary, when you know for sure that you can make a premium to him, you will not hesitate to shoot at him."

"In other words, in layman's terms, the benefits are not reaped, and the beatings are not less."

"Awesome, I see." Lin Dong didn't know what to do.

"Brother Bo, what is the premise of your previous assumptions?" Wang Xu asked.

Chen Bo swallowed: "All outputs will definitely cause damage. ”

"This in itself is a false proposition, and the premise of the assumption is wrong." Wang Xu pointed out the key points.

"I know now." Chen Bo sighed.

Wang Xu made another analogy: "[Bagua Array] gives people a very mysterious feeling, like betting with chips, you never know whether this hand is winning or losing, sometimes winning a lot of money, sometimes losing a lot of money." ”

"And [Tengjia] gives people the feeling that she is like a little girl standing on the street at the junction of urban and rural areas, and she treats her coldly when the money is not in place, and she sings every night when the money is in place."

Lin Dong echoed: "There is a reason for chasing girls, [Bagua Array] is an unattainable goddess, and you can never see the progress bar, [Vine Armor] is a green tea bus, and the money is in place suddenly." ”

"I know how to draw inferences, I am very optimistic about you." Wang Xu praised.

"Isn't it just two equipment, and it's betting and chasing girls, as for it?" Chen Bo pouted.

"It's convenient for you to understand, otherwise I'll talk to you about it, are you sure you can understand?" Wang Xu smiled.

"If you don't try, you'll know." Chen Bo replied in a panic.

"Do you know what the rational man hypothesis in economics is?"

"All the economics stuff is coming? Isn't this a board game? "Chen Bo had several myocardial infarctions.

Wang Xu said: "The theory is the same, and the rational person hypothesis believes that everyone engaged in economic activities is self-interested, and they all aim to obtain the maximum benefit for the minimum purpose, and are not restricted by any conditions. ”

"Playing cards, it's a similar reason, in the national war mode, the boundaries of allies are very blurred, and it is inevitable that the early guns will go wrong, so that all players can ignore hatred and dislike, and aim for the pursuit of ultimate victory, is this realistic?"

He asked himself and replied: "It's obviously unrealistic, I've played a few games, just trying to be cool, a few blind fights, brainless revenge abound, and irrational individuals are obviously dominant." ”

"You mean rational people are wrong to assume otherwise?"

Wang Xu bowed his head and said: "Yes, it's the same mistake you made, the premise of the assumption is wrong, can the conclusion be correct?" ”

"The old economic model is outdated, and now what is needed is to grasp the real-time dynamics, and the model architecture is constantly changing as the data continues to be enriched and improved."

"What the hell are you trying to express..."Chen Bo felt that the other party was just deliberately showing off his talents.

"A fool trying to present data on an electronic scratch paper is destined to live in the last century." Wang Xu raised his eyebrows.

"Well, as you wish." Chen Bo puffed out his cheeks.

Mr. Li Hui's entry point is similar to Wang Xu's, based on unknown risks, he jumped out of the category of the Three Kingdoms Killing and extended to the interpersonal and social field.

"Research shows that when people face the same gains and losses, the losses make them feel more uncomfortable, and the negative benefits are about 2.5 times greater than the positive effects."

"The unknown itself is a risk, it can be both zero and infinite, like an active volcano that has been dormant for a long time, although it has never left a trace of its ravages in history, it is always a wake-up call."

"It's better to be a metaphor for us chasing girls." Wang Xu and Lin Dong teamed up to play the national war.

Lin Dong said modestly: "Where is it, I am just picking up people's teeth, and Brother Xu is the master of talents." ”