To study the effect of the first of these cognitive biases, the Availability heuristic, I’ve inserted the key words of Mr. X’s posts in Google Trend, which allows to observe the frequency of searches for a specific word (the values range from 0 to 100, with 100 representing the moment of maximum research compared to the rest of the period). What I expected to see was a match between the increase of researches of a word and the usage of that word/concept in the posts.
However, the results I have obtained go beyond all the initial expectations.
The Great Fear
23rd Februar: Mr. X urges us to go shopping, which later turned out to be meaningless as the actual ability of Italian supermarkets to meet demand was never really questioned. Below are the researches that contained “Empty supermarkets”. 
8 March: Mr. X invites everyone to stay at home as a key weapon to fight Covid-19. Below are the searches that contained the words “Stay at home”.
The Great Conspiracy
10 March: conspiracy over the American military. Above are the searches for the words “American Military”. 
22 March: phantom Japanese cure that Italy refuses to implement given the incompetence of the Government. These are the searches titled “Japan” in that period. 
24 March: the government conspiracy, one of many. These are the searches titled “conspiracy” in that period. 
21 April: Mr. X speaks of a culpable epidemic, a rather unusual term for what is the daily vocabulary of the average person. However, it can be explained by observing research that contains “culpable epidemic”. 
22 April: Covid-19 is an invention to stifle individual freedom. Frequency of search for “individual freedom”. 
4 May: the cure (the plasma) is there but nobody talks about it. Research that contains the word “plasma”. 
21 and 29 August: Covid-19 is not dangerous, on the contrary! The above searches translate as “Covid not dangerous”.
It’s as much fun as it is disturbing to see how most of Mr. X’s posts, from the weirdest to the most serious, are so strongly dependent on what is being dealt with at a specific time in the rest of the country.
The Availability heuristic works just like that. Our mind, in order not to struggle, takes what is the most available information, constructs a sensible reasoning on it, and justifies what surrounds us without questioning the validity of what we are stating. After all, the Availability heuristic starts from the assumption that if something can be easily recalled, it must be important, or at least more important than alternative solutions that are not so readily available. People often rely uncritically on the content of their beliefs, if their implications are not called into question by the difficulty they have in examining the subject in question.
This is one of the main reasons behind the fact that Mr. X, who had initially such a good approach to Covid-19, inviting people to stay at home and approach it with caution, has radically changed his mind, bombarded by the endless news that have overwhelmed all of us in recent months.
Looking back we see how Mr. X has said so many stupid things. However, at the time when most of the news had come out, they didn’t seem not so stupid. That’s normal. The further we get away from the information over time, the more we can give it the right weight it deserves, which often does not correspond to the importance given at the beginning.
Now, let’s examine the other relevant cognitive biases in the case of Mr.X
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B.BIAS 