Most of Billionaires are O?

 According to this video, most of billionares are O.
你的血型決定你的命運，O型血最有錢？AB型血最稀少？ | 老高與小茉 Mr & Mrs Gao

Mark Zuckerberg O - Facebook
Steve Jobs O - Apple
Bill Gates O - Microsoft
Masayoshi Son O - Softbank
Jeff Bezos B - Amazon
David Koch A - Koch Industries
Sam Walton O - Walmart
Amancio Ortega O - ZARA
Warren Buffett O - Berkshire Hathaway
Jack Ma O - Alibaba
Liu Qiangdong O - JD
Ma Huateng O - Tencent

Type O is Stronger than Type A against COVID-19?

See the following paper:

Relationship between the ABO Blood Group and the COVID-19 Susceptibility

Jiao Zhao, Yan Yang, Han-Ping Huang, Dong Li, Dong-Feng Gu, Xiang-Feng Lu, Zheng Zhang, Lei Liu, Ting Liu, Yu-Kun Liu, Yun-Jiao He, Bin Sun, Mei-Lan Wei, Guang-Yu Yang, Xinghuan Wang, Li Zhang, Xiao-Yang Zhou, Ming-Zhao Xing, Peng George Wang

The ABO group in 3694 normal people in Wuhan showed a distribution of 32.16%, 24.90%, 9.10% and 33.84% for A, B, AB and O, respectively, versus the distribution of 37.75%, 26.42%, 10.03% and 25.80% for A, B, AB and O, respectively, in 1775 COVID-19 patients from Wuhan Jinyintan Hospital. The proportion of blood group A and O in COVID-19 patients were significantly higher and lower, respectively, than that in normal people (both P < 0.001).

ESPN: Darvish can guess your blood type

Source: ESPN

The followings are excerpts:

"So there is Type A. That person is organized. Type B isn't exactly selfish but he goes his own way. Type O is laid back, a 'whatever happens' type of guy. AB is weird or different."

As he says all this, his catcher actually walks by. Darvish points back at Caratini as he passes.
"He's Type B," Darvish says with a smile. "I know it."

When a few teammates heard Darvish could guess blood types, they went scrambling to find out their own.
"I almost gave my mother a heart attack," first baseman Anthony Rizzo said with a laugh.
Rizzo called his mom to find out but without any explanation, she got worried. Alas, no transfusions were needed for her son, but she didn't know his blood type. Neither did Kris Bryant's mom or dad. However, Darvish's agent, Joel Wolfe, did know his -- which Darvish guessed correctly.

A Chinese Book: Blood Type and Personality

<Chinese>
血型与性格
一部性格百科解析，从各种角度，以各种实例，横向纵向分析了血型与性格的关系。内容丰富，实用性强，打开了探索人心世界的新大门。
唐狸 著

<English translation>
Blood type and personality
A personality encyclopedia analyzes the relationship between blood type and personality from various perspectives and examples. Rich in content and practical, this book opens a new door to explore the human world.
Author: Tang Tan

You can buy this book in jd.com and taobao.com.

Satoshi Komori: Why are Japanese people so interested in "blood type and personality"?

Satoshi Komori
Let's know Japanese people (1) Why are Japanese people so interested in "blood type and personality"?: Relationship between blood type and personality in japan (English Edition)

Kindle version is available

Ghosn must be type O!?

He hid himself in a musical instrument case at the end of the year with little security and flew to Istanbul on a business jet from Kansai Airport.
Just after the arrival, he switched to another flight and entered Lebanon swiftly.
It doesn't seem like he himself had made the plot "MISSION: IMPOSSIBLE", but from the point of view of his bold actions, Ghosn must be type O.

https://www.imdb.com/title/tt0117060/