1-Page Summary

Bad Blood: Secrets and Lies in a Silicon Valley Startup is written by John Carreyrou, the very Wall Street Journal reporter who first exposed Theranos. It covers all known history of how Theranos started, maintained its lies, and fell.

The story is an incredible demonstration of the weaknesses of human psychology. Even very sophisticated investors, whose job is to sniff out these exact situations, fell completely for the fraud until it was exposed.

Beyond just detailing the chronology of the story, our Bad Blood summary covers three major questions:

We’ll focus on the themes of why so many sane, professional people were completely taken in and ignored the warning signs until it was too late.

How Did the Deception Begin?

It has to start with Elizabeth Holmes, who dreamed big. She clearly had large ambitions. When asked what she wanted to be at 10 year old, she answered “a billionaire.”

Theranos had a vision people wanted to believe in - “detect diseases early so no one has to die unnecessarily.” All types of stakeholders saw what they wanted to see in it, allowing large suspension of disbelief.

Elizabeth Holmes practiced charismatic techniques to win over supporters.

Stakeholders used pattern matching to jump to wrong conclusions.

How Did the Deception Continue?

To hide the fact that their proprietary machine that didn’t work, Theranos crossed the limits of scientific legitimacy. These were non-standard distortions of scientific practice.

When scientific manipulation wasn’t enough, Theranos actively deceived people and lied by omission.

When company insiders doubted the company’s strategy, Theranos actively quashed dissent.

Mental biases like fear of missing out and sunk cost fallacy prevented partners from looking deeper.

How Did the Deception End?

Theranos overreached in ambition, causing them to require delivering at some point.

Theranos stepped too far down the slippery slope of deception, until even their strong-arm tactics couldn’t hold back a conscience.

A journalist fought for the story.

In the downfall, momentum and vicious cycles are as punishing as they are powerful on the way up.

Part 1: How Did the Deception Begin?

It has to start with Elizabeth Holmes, who dreamed big.

Theranos had a vision people wanted to believe in - “detect diseases early so no one has to die unnecessarily.” All types of stakeholders saw what they wanted to see in it, allowing large suspension of disbelief.

Elizabeth Holmes practiced charismatic techniques to win over supporters.

Stakeholders used pattern matching to jump to wrong conclusions.

Part 2: How Did the Deception Continue?

It’s common for early stage startups to raise money without a product. But typically, when they don’t show meaningful progress, their investors back out and they shut down.

How could Theranos continue its operations for over a decade, when its product did virtually nothing it claimed?

In summary, it was a combination of active deception by Theranos management, combined with psychological biases preventing outsiders from pushing further for the truth.

To hide the fact that their proprietary machine that didn’t work, Theranos crossed the limits of scientific legitimacy. These were non-standard distortions of scientific practice.

When scientific manipulation wasn’t enough, Theranos actively deceived people and lied by omission.

When company insiders doubted the company’s strategy, Theranos actively quashed dissent.

Theranos actively kept information opaque, preventing the flow of information.

Theranos explained away odd practices within the company.

With all the above techniques suppressing doubt from leaking, Elizabeth continued her charisma and PR campaigns.

Mental biases like fear of missing out and sunk cost fallacy prevented partners from looking deeper.

Once something gains enough momentum, virtuous cycles can perpetuate the fraud for a long time.

(Shortform note: To reject Theranos as a fraud meant rejecting every pillar of strength - 1) the investors, partners like Walgreens, AND its advisory board must not have done due diligence; 2) all the gushing press writers must have been hoodwinked; 3) government regulators must be ignoring the deception; 4) the data shown would have to be lies; 5) Elizabeth Holmes would have to be a psychopath

Part 3: How Did the Deception End?

Theranos overreached in ambition, causing them to require delivering at some point.

Theranos stepped too far down the slippery slope of deception, until even their strong-arm tactics couldn’t hold back a conscience.

A journalist fought for the story.

In the downfall, momentum and vicious cycles are as punishing as they are powerful on the way up.

Shortform Conclusion: Applying Psychological Biases

Warren Buffett’s partner Charlie Munger has a list of 25 cognitive biases to be aware of in decisionmaking. As he says, when multiple biases are in play simultaneously, a “lollapalooza” happens leading to extremely distorted results. This is as true in Theranos as it is in cults.

Here’s a rundown of major biases that played into perpetuating Theranos’s fraud:

All these influences built on each other, preventing the fraud from unraveling for years, until the accumulation of fraud became too much.