🎓 Doc Freemo 🇳🇱 @freemo@qoto.org

I've been watching Feynman's class lectures recently, I've had a curiosity with him the past few days.

One thing really strikes me. He gets very excited when he explains physics every time, but when someone doesnt understand something complicated he is explaining feynman gets this very disappointed look, not in the student but as if he is disappointed in himself.

I think that right there is why he was such an amazing teacher.

Do you guys know the story about Eurisko, one of the earliest Evolutionary Algorithms attempted, done back in the 80's by Lenat. An interesting bug had arisen that is both insightful and amusing.

The purpose of the problem is that it evolved new heuristics for some problem it is given and then try them to solve the problem. Heuristics that work would get a higher score and ones that dont get a lower score. Eventually it would learn which a re best and would try the heuristics in order on new problems to find solutions.

One day after a night of solving problems Lenat came in and noticed there was heuristic that scored 999 out of 1000, the highest score ever seen. Excited he tried to figure out what the heuristic was doing.

As it turns out the heuristic basically said "whenever a problem is solved add this heuristic to the list of heuristics used to generate the solution"

You can read about this bug, and the project in general in this book. See page 90 for specific reference to the bug:

https://users.cs.northwestern.edu/~mek802/papers/not-mine/Lenat_EURISKO.pdf

#Science #MachineLearning #AI #AGI #EvolutionaryComputing #Evolution #Programming #CS #ComputerScience #QotoJournal

So apparently this restaurant im ordering from has "bottled water" for $2.00 and "Homemade Fresh Water" for $2.50

This opens up a lot of questions for me...

"There is a very large number of stars in the galaxy, there's so many if you tried to name them, one a second, naming all the stars in our galaxy, I dont mean all the stars in the universe, just this galaxy here, it takes 3,000 years. Yet that isnt a very big number because if those stars were to drop one dollar bill on the earth during a year, each star dropping one dollar, they might take care of the deficit that is suggested for the United States" --Feynman

#science #Physics #Uspol #Astronomy

The full "Fun to Imagine" session done by the late great Dr. Feynman.

Please everyone watch this, even if your not a scientist or if you are. Its really easy to follow and this guy has a beautiful way of explaining things and gives a lot of important insights.

Everyone, please, take the time you wont regret this one:

https://youtu.be/P1ww1IXRfTA

#Science #Physics #QotoJournal #Feynman

This gets close to being NSFW but isnt... Guy is on a conference call for work and asks to sign off. But he doesnt actually sign off and then starts a masturbation session (you dont see anything on camera).. holy shit this is priceless.

https://youtu.be/V__GbBaIXPU

@design_RG per your request you now have your own subforum:

https://discourse.qoto.org/c/PROJ/PINA/35

Is a vocal activis someone who tries to bring awareness to the singing community, or someone who just talks alot about activism.. hmmm

Whenever I go to this spot to practice my Cave diving skipps Virgil The Soft-shelled Turtle comes over to say hi. He likes to get his belly scritches when I am diving, assuming a fish doesnt distract him anyway :)

This is only 33 feet / 10 meters down before entering the cave. Its a practice case so fairly shallow. It only does down to about 120 feet / 35 meters or so.

#scuba #scubadiving #CaveDiving #caves

If you never watched the clip about Dr. Feynman explaining the nature of a "why" question please watch this. It is probably one of the most important things a critical thinker could ever know if they dont already:

https://youtu.be/36GT2zI8lVA

#Science #Physics #Feynman #QOTOJournal

Still waiting on the USA to invade us and give us some of that freedom they/we keep talking about...

This video started a good discussion over on my friends feed. So far no one has answered it and I dont want to give away the answer to anyone else (please CW your answers) but the question is this:

Why is it when you burn a piece of steel wool it gets heavier, but if you burn a log it gets lighter.

#science #chemisty #physics

Part of me thinks if we didnt just get through with being stuck inside all alone for 3 months loosing our sanity America probably wouldnt be so quick to riot right now.

Dont get me wrong, people being pissed is absolutely justified. I'm just saying, it may have made tensions unusually high :)