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Há 5 horas · Apple’s Tim Cook said being CEO is a “lonely job,” and Airbnb’s Brian Chesky frequently said that his rise only perpetuated his loneliness. “I started leading from the front, at the top of the mountain, but then the higher you get to the peak, the fewer people there are with you,” Chesky told Jay Shetty during an episode of On Purpose last year.
Há 5 horas · Lorenz cipher machine, used in World War II to encrypt communications of the German High Command Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior ...
Há 5 horas · Kenneth Cordele Griffin (born October 15, 1968) is an American hedge fund manager, entrepreneur and investor. He is the founder, chief executive officer, co- chief investment officer, and 80% owner of Citadel LLC, [1] [2] a multinational hedge fund. He also owns Citadel Securities, one of the largest market makers in the United States.
