wrangler5 Loc: Missouri

I know I used to know a lot more than I know now. I think.

Hangingon Loc: NW North Dakota

I have read “Never under estimate your ability to over estimate your ability.”

Fotoartist Loc: Detroit, Michigan

I thought it was about democrats.

Hangingon Loc: NW North Dakota

Remember to “Never under estimate your ability to over estimate you ability.”

robertjerl Loc: Corona, California

Well a Brazillian 'Real' is worth $.24 so a brazillian is about $240,000 (1,000,000 x .24).

robertjerl Loc: Corona, California

I seem to remember one TV interview where he organized and worded it differently.
There are facts that are known.
There are unknown facts that we know we don't know.
There are unknown facts that we don't know we don't know. That one sometimes got expressed as "Unknown unknowns"

And of course those unknown unknowns can turn out to be the most dangerous.
The big example I used to try to get my students in World History to understand was how WW I got so big so fast over the assassination of one nobleman of the Austro-Hungarian Empire that many believed the Emperor didn't even like that much and wished he wasn't next in line for the throne. The "unknown unknowns" were all those secret treaties that pulled in countries the other side wasn't even thinking of when they did things. I read a study of the telegrams going back and forth between the Kaiser, the Tzar and I believe a few by George V. They basically were variations of - Help, I can't get my politicians and generals to back off because of those damn secret treaties. Can you get your's to back off. - I can't either, what do we do? God Help Us! I read somewhere that at one point the Kaiser or Tzar, I forget which at the moment said "If Grandmother was still alive none of this would be happening." Grandmother being Victoria, she was the grandmother of all three.

Rich Maher Loc: Sonoma County, CA

Very interesting video, thanks for sharing.

BarneyB

Nice clarification and amplification! I like it!

jerryc41 Loc: Catskill Mts of NY

Only the stupid comments.

jerryc41 Loc: Catskill Mts of NY

Another good line, probably by Mr. Anonymous.

"When I was thirteen, I was embarrassed by how stupid my father was. When I turned twenty, I was amazed at how wise he had become in just seven years." : )

woodworkerman Loc: PA to FL

As Artie used to say, "Verrrrrry Interesting."

Cookie223 Loc: New Jersey

This confirms it, I don't know sh*t about photography!
My green section in my square is half the size of Mikes, and the gray section is bigger than the professional!LOL

P.S. It was very interesting, thanks for sharing.

Cookie223 Loc: New Jersey

Now you did it!

Cookie223 Loc: New Jersey

Now you did it.

tommystrat Loc: Bigfork, Montana

Fascinating - and applicable across such a broad spectrum of "experts"