things i learned

Where trust comes from

2023-07-21

I found this video to be a helpful distillation of concepts I'd heard before with a couple things that were new to me.

I'd known that trust is a combination of credibility, reliability, intimacy, and self interest, but I hadn't heard the sub components before:

Credibility

  • The words we use
  • The skills / credentials we bring
  • How other people experience our expertise

Reliability

  • Actions we take
  • Our predictability
  • Will others find us dependable

Intimacy

  • Empathy
  • Discretion

Self interest (destroys trust)

  • Do you seem to be prioritizing yourself over the group / others

The longevity of infrastructure

2023-07-20

The Whiting hydroelectric power plant was built in 1891 and still operates today, and the 2018 Camp Fire in California was caused by a PG&E transmission line built in 1921.

From The Grid part IV by Brian Potter

Marathons and the increase in mortality

2023-07-12

Just to give you a sense, the mortality rate for something like cardiac arrest or a heart attack goes up by about 15 to 20% on the day of a marathon. Now, most people are not having cardiac arrest or a heart attack, so the aggregate impact on a city might be limited. But I think if I were to talk to people about the Boston Marathon bombings, most people would say that was a horrific event. But more people die because of marathon-associated road closures every year in a given city with a large marathon than died in the Boston Marathon bombings. But the bombings, what they did are so salient to us. Deaths in these other channels, we don’t even think about that.

That is from David Epstein's newsletter Range Widely. The cause is that the closure of roads along the marathon route makes it difficult to get to hospitals quickly.

An idle thought: I wonder if the same holds true for cardiac arrests during rush hour traffic?