My friend Larry King has died.

It is literally true that thousands of us can make that sad statement this morning. While he was easily caricatured, I’ve never known anybody who made a bigger deal out of the slightest kindness afforded him.

#RIPLarryKing

1) 25 years ago...

Survivorship Bias 101

History is written by the victors. But if we exclusively focus on these successes, we allow survivorship bias to distort our understanding of the world.

But what is "survivorship bias" and how does it work?

Here's Survivorship Bias 101!

👇👇👇

1/ First, a few definitions.

Survivorship bias is the logical error of concentrating on survivors (successes) and ignoring casualties (failures).

When we do so, we miss the true "base rates" of survival (the actual probability of success) and arrive at flawed conclusions.

2/ When we completely ignore failures, we lose our ability to correctly identify the differences between successes and failures.

Put simply, exclusively focusing on successes may actually inhibit our ability to identify (and replicate) the actions that led to such success.

3/ Cicero wrote on the topic over 2,000 years ago.

An atheist named Diagoras is shown portraits of people who prayed and were saved from death at sea as proof of God's existence.

Diagoras replies, "I see those who were saved, but where are those painted who were shipwrecked?"

4/ Cicero cuts right to the point - we cannot conclude that prayer led to being saved from the sea if we ignore those who prayed and then drowned.

Survivorship bias can lead to a deeply-flawed understanding of cause-and-effect relationships.

Let's look at some examples.

2020 marks the start of the quantum dot revolution.

Completely ignoring the fact that "photocatalytic generation of reactive oxygen species (ROS) from quantum dots (QDs) has been widely reported."

Results: It was found that whereas singlet oxygen (1O2) was not produced by photoexcited QDs, superoxide anion(O2− )and hydroxyl radicals(OH) were generated by QDs, especially in the presence of a physiological concentration of electron donating agent including NADH.

Using cell metabolic activity assays and various probes of ROS generation, the formation of ROS in cellular environments was demonstrated.

Conclusion: Illumination of QD-treated cells and bacteria with light did affect viability. The above results, together with those of assays in the presence of various scavengers of specific ROS, indicate that the formation of ROS by QDs mainly proceeded via electron transfer.

The evils committed by Ravi Zacharias were enabled by a toxic organizational leadership that is evidenced by how these same leaders responded when confronted about the widespread and ongoing abuses being perpetrated by the namesake of the institution. 1/29

Please take time to read this piece by @DavideAFrench and the 26-page letter written by a first-hand witness. Here are just some of the excerpts: 2/29

"At one point, Ravi suggested to me that the Task Force “issue a statement that they [the Thompsons] are hooligans, they are scoundrels, they are thugs, they are serial extortioners.” If we didn’t do that, he told me, he would ask his attorney to do so on his behalf." 3/29

"...I distinctly recall Ravi & Sanj mocking the Thompsons’ marriage & scornfully predicting how soon Brad & Lori Anne would get divorced. “I predict their marriage won’t survive the year,” Ravi asserted with laughter. “A year?” replied Sanj. “I wouldn’t give it six months!” 4/29

"In 2017, in the early stages of his RICO against the Thompsons, Ravi would often invoke Kelly [his attorney], making statements such as “my attorney said we are going to crush them.”" 5/29