HDFC AMC - what Nicolas Darvas discussed at length about his box theory.

So there's a class of puzzles called "river crossing puzzles" which involve having to cross a river on a boat/bridge containing some set of individuals/items with restrictions on which ones can be on the boat/left on each shore, right?

and the most common subclass of these problems is the one where you have 3 items/animals to cross with.
This is alternatively called the "fox, goose, and bag of beans" or "wolf, goat, and cabbage" puzzle.

the idea is that your boat can only carry one item at a time, but if you leave the wolf/fox unattended with the goat/goose, the wolf/fox will eat the goat/goose.
and similarly, the goose/goat will eat the beans/cabbage if left alone

so you have to set up a set of actions that never leaves either side of the river in one of the lose-states.

the solution to this variant being:
1. take the goat/goose over
2. return empty
3. take the wolf/fox over
4. return with the goat/goose
5. take the cabbage/beans over
6. return empty
7. take the goat/goose over

You want to know something about how bullshit insane our brains are?
OK, so there's a physical problem with our eyes: We move them in short fast bursts called "saccades", right? very quick, synchronized movements.
The only problem is: they go all blurry and useless during this

having your vision turn into a blurry mess every time you move your eyes is obviously not a good idea, so our brains hide it from us. Now, imagine you're an engineer and you have this problem.

You've got some obvious solutions you could do.
1. make the vision go black during movement. (Some VR games do this!)
2. just keep showing the last thing we saw prior to movement

both are good options with different downsides, but OH NO. this is assuming everything makes sense and is chronological and (regular) logical.
Your brain does neither of these options, really.

first, it basically puts your visual system on "pause". You're not seeing blackness or even nothing, you're just not seeing period.
then when you finish your saccade, it shows you what you now see at the new position. and then it pretends it can time travel.

Marvels of Medical Science in Ancient India

ACHARYA SUSHRUTA and SUSHRUTA SAMHITA

Ancient Indians were pioneers in diverse fields of study and their genius was centuries ahead of their times. Feel the glory, basking in pride of their unparalleled achievements.

(Thread)

Sushruta (circa 7th or 6th century BC) was a surgeon who in present times is known as the “father of Indian medicine” and “father of plastic surgery” for inventing and developing surgical procedures. He lived in Kashi on the banks of river Ganga.(1)

His work documented in the Sushruta Samhita (compendium) is one of the oldest texts in the world on plastic surgery and regarded as one of the trilogies of Ayurveda. The other 2 being the Charaka Samhita and Astanga Hridaya.(2)

Sushruta compiled the Sushruta Samhita as an instruction manual for physicians to treat patients.(3)

The Samhita caters to surgical techniques listing over 300 surgical procedures and 120 surgical instruments. Additionally to 1,120 diseases, injuries and their treatments with over 700 medicinal herbs and their application.(4)