(Continuation from yesterday)

However, form the information from a doctor that I have trusted, and as a result of my own all-out papers research and numerical analysis,

"Masks are absolutely effective in preventing new coronary infections"

I am absolutely convinced that.

The reasonings behind this are,

for this, and

for this, and

for this, and

for this, and

for this, and

for this, and

they are composition, proofreading, research, and writing.

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I don't just believe what people tell me, I've been taught, I've done my own research, I've done my own thinking, and I've written my own conclusions.

"If the result is laughed at in the future, I don't mind it"

I will defiantly declare in the future.

On the other hand, to the people of the future who laugh at me in the past,

"Even your present common sense may be laughed at in the future"

"Are you doing enough to be able to say, "It's always the result of my own thinking and action", so it's okay'?"

I am going to be even prepared to argue with them.

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In the case of the corona disaster, I "overwhelmingly recommend" the use of a mask.

Why am I doing ?

This is because the cost-effectiveness is unbelievably high and the sunk costs are endlessly low.

This is because there is a difference of about 147,000 light years between the advantages gained by wearing a mask and the disadvantages lost by not wearing a mask.

In other words, "intense pain, serious illness, and worst death" v.s "instant (seconds) ridicule 10 years in the future".

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Well, it's "you" who chooses to use the mask, or not -- however,

that doesn't mean that "you have the right to not wear a mask, anywhere, at your will"

This is because the above cost-benefit discussion does not include "third parties other than you".

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As a natural thought,

The act of "I don't believe in masks at all, however I wear masks for people who do believe in them" is

- neithor self-contradictory, nor self-deceptive,

- a common act in the socially accepted sense,

- a super, super, super low-cost approach to building a mutually pleasant society

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And well...

I am truly dismayed that there are still some "hopeless and devastated idiots" left who can't even do this level of logic (calculating costs and social conventions).