Business

Bad Blood: 8 key ideas

by John Carreyrou

The core ideas of Bad Blood, each in under a minute, written in our own words. Want the full depth? Get the book.

1. IDEA 1 OF 8

   A startup promised a revolution

   Carreyrou, an investigative journalist, tells the story of Theranos, a Silicon Valley company that claimed it could run many medical tests from a few drops of blood.

   Its founder, Elizabeth Holmes, became famous and attracted huge investment.

2. IDEA 2 OF 8

   The technology did not work

   Carreyrou reveals that Theranos's testing device, called the Edison, did not work as claimed.

   The company secretly used other machines for many tests. Carreyrou reports that the company went on selling the idea to investors and customers while its machine could not do what was promised.

3. IDEA 3 OF 8

   Secrecy hid problems

   Theranos kept its work secret, even from its own employees.

   Departments were separated so few people saw the full picture. In Carreyrou's account, this made it hard for workers to notice problems or to compare notes with each other.

4. IDEA 4 OF 8

   Critics were intimidated

   Carreyrou describes how Theranos used lawyers and threats to silence employees and critics.

   Fear kept problems hidden. In Carreyrou's account, this created an atmosphere where workers were afraid to question what they saw, and so the false claims continued.

5. IDEA 5 OF 8

   Big partners were misled

   Theranos partnered with Walgreens to offer tests in stores.

   Patients received unreliable results. Carreyrou describes how a big, trusted partner can lend credibility, even when the real technology behind it has not been proven.

6. IDEA 6 OF 8

   Young employees spoke up

   Whistleblowers like Tyler Shultz and Erika Cheung raised concerns despite pressure.

   Their courage helped expose the fraud. Carreyrou says that it was not easy for these young workers to challenge a powerful company, since they risked their careers and legal trouble.

7. IDEA 7 OF 8

   Journalism exposed the truth

   Carreyrou's reporting in the Wall Street Journal revealed the problems at Theranos.

   The company collapsed. Carreyrou says the articles prompted investigations, and the company, once valued at billions, soon fell apart. This is why careful checking matters.

8. IDEA 8 OF 8

   Hype can be dangerous

   Carreyrou's story shows how charisma and hype can mislead investors and the public.

   Due diligence matters. In Carreyrou's account, investors and partners trusted a confident story and famous names, and did not look hard enough at the actual evidence.