Vitamin D

When the ‘rona began here in the US, the first thought I had was that those with vitamin D deficiencies were going to get ‘rona easier and probably have a harder time if they do get it than those who are not vitamin D deficient. I’m not a doctor by any stretch, but I do know that Vitamin D helps the immune system. It appears that my original thoughts were correct.

I take a multi vitamin daily that has 1,000 IU of Vitamin D3, which according to the label is 250% of my recommended daily intake. The Mayo Clinic recommends 600 IU/day. Mr. Manifold in the post below is quoted thusly:

Essentially everyone in the population should take 4000 IU (100 mcg) of vitamin D₃ per day, and many people should take 10,000 IU (250 mcg).

No links are provided to support his recommendation, however I have heard of others in my immediate circle who are jacking their intake to 4,000 IU.

I surfed around a bit and of course found conflicting info. Does anyone reading this have concrete proof/evidence of how many IU/day a normal, healthy middle aged guy should have?

Reopening — III (Theory ∧ Practice)

“We should act incrementally as prudent risk minimizers and pursue any effective no-regrets options. We do not have to wait for the formulation and acceptance of grand strategies, for the emergence of global consensual understanding, or for the universal adoption of more rational approaches.”

— Vaclav Smil (Global Catastrophes and Trends: the Next Fifty Years)

This post is an attempt at synthesis; those just grazing in (Midwesterners don’t surf) are directed to Reopening — I (Practice) and Reopening — II (Theory) for accounts of my earlier action and contemplation, respectively. For my third installment, I can do no better than lead off with a quadrant diagram of my own devising:

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Worthwhile Reading and Viewing

It’s been a while since I posted a link collection, so here are quite a few…

The highest-resolution snowflake photos ever captured.  

The real kind of snowflakes, not the metaphorical kind.

Stella’s best leaf jumps of all time.

A lot of enthusiasm

Spot, the Robot Dog, goes to work on an oil rig.

Bet Spot can’t do what Stella can do.

The recent discussion of port congestion reminded me of this very interesting website, which shows the world’s maritime traffic in real time or very close to same.

And on a more somber note:  November 10 marked the 45th anniversary of the Great Lakes ore carrier Edmund Fitzgerald, an event memorialized in song by Gordon Lightfoot.

Still on the subject of transportation: the implementation of Positive Traffic Control for US railroads, which has been a huge and complex project, is almost complete.

I’m not sure that this mandate really represented the best possible safety-return-on-investment for the money expended.

Turkish trash collectors built a library for abandoned books.

Visiting cards and actual visits, as a Facebook equivalent in 1800s Russia.

Reminds me of a passage in one of Fielding’s novels, in which a woman takes great pleasure in going through the visiting cards of people who called on her, which made me immediately think of like-collecting of Facebook.