Protecting Sight #113: The paradox of happiness. Lifting the iris, the ophthalmic hospitalist, binocular vision & quality of life, Leonardo da Vinci, the Knowledge Project, and We Study Billionaires.

Welcome to my daily learning journal. My daily goal is to watch one Ted Talk and one cataract surgery. I also plan to read one journal article and read/listen to a book chapter, short story or significant work.

Here’s today’s list:

1. Ted Talk – Matt Killingsworth: Want to be happier? Stay in the moment. “When are humans most happy? To gather data on this question, Matt Killingsworth built an app, Track Your Happiness, that let people report their feelings in real time. Among the surprising results: We’re often happiest when we’re lost in the moment. And the flip side: The more our mind wanders, the less happy we can be.” (

I enjoyed this talk and his study findings. All the more reason to stay in the moment. It may make you happier!

The paradox of happiness is that even though the objective conditions of our lives have improved dramatically, we haven’t actually gotten any happier.”

Matt Killingsworth (Ted Talk)

2. Uday Devgan MD – lift the iris in smaller pupil cases. Dr. Devgan writes in part, “We can use the chopper or other second instrument to lift the iris and check all quadrants of the capsular bag. We are looking for two things: (1) to make sure that both haptics and the optic are within the capsular bag, and (2) to ensure that there is no residual lens material such as adherent cortex or a small nuclear chip.” Nice technique.

3A. Journal – The Ophthalmic Hospitalist. Matthew F. Gardiner, Joan W. Miller. Ophthalmology (September 2020). p1143–1144. I was an intern (back in 1997-1998) when my internal medicine chief resident told me he was going to become “a hospitalist.” Some 22 years later, we may now see more ophthalmic hospitalists. Worth a read.

3B. Journal – Using Uniocular Visual Acuity Substantially Underestimates the Impact of Visual Impairment on Quality of Life Compared with Binocular Visual Acuity. Ryan Eyn Kidd Man, Alfred Tau Liang Gan, Eva K. Fenwick, Sahil Thakur, Preeti Gupta, Zhen Ling Teo, Ching-Yu Cheng, Tien Yin Wong, Ecosse L. Lamoureux. Ophthalmology (September 2020). p1145–1151.

Recto: A sheet of miscellaneous studies: Verso: Studies of geometry
LEONARDO DA VINCI (VINCI 1452-AMBOISE 1519)Recto: Studies of geometry, clouds, plants, engineering, etc. Verso: Studies of geometry c.1490. RCIN 912283 (link)

4. Book Chapter – Leonardo da Vinci by Walter Isaacson. Chapter 5, “Leonardo’s Notebooks.” I loved Walter Isaacson’s biographies of Steve Jobs and Benjamin Franklin.

I had read Chapters 1-4 earlier this year, and would stop for hours to look up the paintings and drawings which Isaacson mentioned. He describes one sheet of Leonardo’s drawings in detail in this chapter. Great fun!

5. Podcast – Episode 93: Matthew Holland: Zero Day — “Founder and CEO of Field Effect Security, Matthew Holland, is one of the world’s leading authorities in cyber security. He explains exploits, hacking and defending while providing insight on the mind of the attacker, Huawei, Snowden and what you should be asking your cyber security vendor.”

Shane takes a deep dive on cyber security with a world expert. This episode is filled with pearls and insights.

We Study Billionaires

6A. TIP315: GOLD AND GOLD MINERS W/ MARIN KATUSA (September 19, 2020)


My journey on the value investing and daily journal was inspired greatly by Preston and Stig’s podcast. They continue to interview cutting edge authors and thinkers. Both of these episodes help value investors identify opportunities and risks.

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