Tag: strategy

Posted in Science & Nature

Mother Horse

Posted on by Jinavie

Female horses (mares) exhibit a very strange behaviour after they mate with a male. A mare will mate with every other male in the stable, almost immediately after mating with the first one. This strange post-coital promiscuity does not appear to make any sense from an evolutionary perspective, as one would think that pregnancy would lead to a decrease in libido so the mother can focus on caring for her embryo. However, this promiscuity is part of a strategy that helps protect the baby horses.

It is common behaviour in the animal kingdom for a male to kill a female’s young so that he can mate with her and produce babies with his own genetic material. This also happens in horses, where stallions engage in infanticide, kicking a foal to death if it is not his. For a mother horse, this is not only heartbreaking, but also a tremendous waste of the energy she put into pregnancy. So to protect her offspring and conserve energy, she ensures that no male knows who the father of her baby is. It has been shown that males who mated with a female who gave birth will not attack the foal, as there is a chance that it is his. Thus, a mother horse guarantees the protection of her child by prostituting herself to all of the males around.

Although the story of a mother willing to sacrifice everything, even her dignity, for the safety of her offspring may be inspiring, it has also been observed that if a mare cannot mate with all of the males in the stable, she will instead abort the pregnancy. For example, if a new horse is brought into the herd after the mare becomes pregnant, the mare senses the danger to her eventual foal and proceeds to abort it. In a study involving zebras, it was found that bringing in a new male made the foal’s chances of survival fall to less than 5 percent.

Posted in Psychology & Medicine

Tit For Tat

Posted on by Jinavie

In human society, there are many ways for a person to interact with others when in a group setting. Some may choose to be selfish and only be out for their best interests, while others may choose altruism and cooperate with each other. The mathematical model that tries to predict human behaviour and outcome in these settings is the Prisoner’s Dilemma – the core of game theory. Tit for tat is one strategy that can be employed in such a setting.

The basis of tit for tat is equivalent exchange. A tit for tat player always chooses to cooperate unless provoked. As seen in the Prisoner’s Dilemma, if both players cooperate, both benefit (let us say 3 points each); if one player defects, that person gains more than from cooperation (5 points) while the tit for tat player gains 0 points.
If a tit for tat player is provoked, that player will retaliate. However, the player is also quick to forgive. Ergo, if the other player chose to cooperate, the tit for tat player (following the principle of equivalent exchange), will also cooperate. If the other player defected, the tit for tat player loses the first round and then chooses to defect from then on.
Note that tit for tat strategy only works when there is more than one game so that the player has a chance to retaliate.

Let us use an example to illustrate why tit for tat strategy works. In this scenario, two tit for tat players and two defectors all play six games each, using the above point system (if both defect, they each receive 1 point). The results are as follows:
  • Tit for tat vs defector: Tit for tat loses first round, both defect for next 5 rounds (5 vs 10)
  • Tit for tat vs tit for tat: Both cooperate on every round (18 vs 18)
  • Defector vs defector: Both defect on every round (6 vs 6)

When the points are added up, a tit for tat player gains 28 points (5 + 5 + 18) while a defector only gains 26 points (6 + 10 + 10). This is a surprising turn of events, as the defectors never lost a round and tit for tat players never “won” a round. This goes to show how cooperation leads to better long-term results while selfishness prevails.

There are shortcomings of this strategy. If there is a failure in communication and one tit for tat player mistakes the other’s actions as an “attack”, they will retaliate. The other player then retaliates to this and a vicious cycle is formed. This is the basis of many conflicts ranging from schoolyard fights to wars (although interestingly, tit for tat strategy is also found during wars in the form of “live and let live”). One way to prevent this is tit for tat with forgiveness, where one player randomly cooperates to try break the cycle (a defector would respond negatively while a tit for tat player will accept the cooperation), or the tit for two tats, where the tit for tat player waits a turn before retaliating, giving the opponent a chance to “make up for their mistake”.

Computer simulations have all proven that tit for tat strategy (especially the other two types mentioned just before) are extremely effective in games. In fact, it is considered one of the most optimal strategies in overcoming the Prisoner’s Dilemma.

In human societies, there is usually a mix of “nice people” and “selfish people”. By cooperating and trusting each other, we can produce a much greater gain over time compared to being selfish. And since society still unfortunately has “defectors”, you can retaliate to those who refuse to cooperate by defecting on them also. Ergo, a good approach to life is to initially reach out your hand to whoever you meet and treat them from there on according to how they respond. If they take your hand and want to cooperate, treat them with altruism and help them out. If they swat your hand away and try to use you for their selfish gain, it is fine to shun them and not help them out.

Through cooperation, understanding and connection, we can build a far more productive and efficient society, just like the ants.

Posted in Science & Nature

Rock-Paper-Scissors

Posted on by Jinavie

Rock-paper-scissors is a game with a long history. The earliest example of the game is a Chinese game called huoquan, which follows a cyclic rule where the frog eats the slug, the slug dissolves the snake and the snake eats the frog. The reason why rock-paper-scissors has been saved throughout history is because of the uncertainty it contains. Any hand you choose, the chance of winning is the same. Ergo, there is no single best choice and there is no move that will always win. But this is still a game played by people. It is not a game played by emotionless machines, meaning that you can use human psychology, the surfacing of emotion and specific signs and movements to help deduce your opponent’s hand. Mentalist Derren Brown can read tiny flickering of muscles in the opponent and microexpressions to pull off his “undefeatable rock-paper-scissors trick”, but this is near impossible for a normal person to try. However, you can use the following strategies to improve your odds.

  1. Use paper on a beginner: Statistically, people prefer using rock. Males especially have a strong tendency to play rock.
  2. Use scissors on an experienced player: People who know the first trick can be defeated by going one step further.
  3. Use a hand that loses to the hand your opponent played: This uses the psychology of the opponent wanting to mix up hands and wanting to beat the hand you last played (which is the same as theirs as you drew).
  4. Say what you will play and play that hand: In a competitive situation like rock-paper-scissors, people tend not to trust others. Thus, if you say you will play a certain hand, they will think is a trap and not play the hand that defeats that hand. For example, if you said you will play scissors, the opponent will play paper or scissors and you will either win or draw.
  5. Do not give the opponent a chance to think: People have a subconscious tendency to play a hand that beats the hand that they played before. Without time to think, the subconscious takes action meaning that you can predict their move. If you do the same as strategy 3 and play a hand that loses against the opponent’s previous hand, you will win.
  6. Suggest a certain hand: This is a form of hypnosis where you suggest something to the opponent’s subconscious. To use this trick, pretend to go over the rules by saying “rock, paper, scissors” then play a certain hand. The opponent will likely play the hand that the subconscious last saw.
  7. If you keep drawing, use paper: This is the same as strategy 1.

Unfortunately, rock-paper-scissors has an equal probability of a win and a draw, meaning draws are rather common. Thus, a computer engineer called Samuel Kass devised a game where two additional hands are added: rock-paper-scissors-lizard-Spock. Lizard is played by making your hand into the shape of an animal’s head, while Spock is played using the Vulcan Salute from the science fiction show Star Trek, where you make a V-shape with two fingers on each side. The rules are as follows.

Scissors cut paper. Paper covers rock. Rock crushes lizard. Lizard poisons Spock. Spock smashes scissors. Scissors decapitate lizard. Lizard eats paper. Paper disproves Spock. Spock vaporizes rock. Rock crushes scissors.

As each hand has two ways of winning, the odds of winning is 10/25, or 2/5 and the odds of drawing is 5/25, or 1/5. As you can see, you have double the chance of winning compared to drawing, making the game much faster to play than the original game.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 6 – Desperate Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

Desperate Stratagems are last resort tactics that can be used when you are placed in a disadvantageous state or risk losing the war.

Stratagem 31: No weapon could beat seduction
This is the strategy where you use a beautiful woman to tempt the enemy to extract information or undermine their will to fight. It is a deadly strategy that never fails.

Stratagem 32: Empty fort strategy
Purposefully empty your fort to show the enemy that you are defenceless, causing them to think that it is a trap and retreat. It was effectively used by Zhuge Liang in The Three Kingdoms.

Stratagem 33: Countermine the enemy’s spy
Use the enemy’s spy to spread false information or use them as a double agent that can extract the enemy’s intelligence. The “double spies” and “dead spies” from Sun Tzu’s The Art of War fit under this stratagem.

Stratagem 34: Sacrifice yourself to comfort the enemy
Inflict injury on yourself to win the enemy’s trust. For victory, you may have to sacrifice even the dearest things such as your wife or most loyal servant.

Stratagem 35: Chain stratagems
This is an elaborate strategy where you first restrict the enemy’s movement then make use of a series of tactics one by one to decimate the enemy. The most famous example is from The Three Kingdoms in the Battle of Red Cliffs. All of the ships of Wei were linked by chains and could not move freely, making them vulnerable to a fire and causing Cao Cao to lose the battle in an instant.

Stratagem 36: If all else fails, retreat
It is often misquoted as “retreat is the best option”. The Thirty-Six Stratagems explain that retreating is not the most ideal option, but if there is no chance of winning and the cost will be too much, it is wiser to retreat then fight again after reinforcing your forces. Knowing to retreat when you are disadvantaged and the cost is too high is true wisdom.

By utilising these thirty-six stratagems wisely, you will be able to win no matter what situation strikes. Remember: life is a fierce battlefield and without effective strategies and tactics you cannot seize victory.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 5 – Proximate Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

Proximate Stratagems are tactics that utilise something even more fearful than the enemy outside: the enemy inside.

Stratagem 25: Replace the beams with rotten timbers
If you slowly remove the pillars of foundation beneath the enemy one by one, they will naturally fall. More specifically, if you buy off the enemy’s officials and subjects, you can make the country into a useless shell even before starting a war.

Stratagem 26: Point at the mulberry tree while cursing the locust tree
This is a method where you publicly criticise someone’s actions while intending for someone else to indirectly get the message. If you criticise an ally or a subordinate, you run the risk of being betrayed. Thus, it is far more effective to indirectly criticise someone else in a way that the other person understands what you think.

Stratagem 27: Feign madness but keep your balance
It is far better to act like a fool and refrain from misconducting than talking out loudly and committing a rash act. A true leader hides his ingenuity, meaning he may appear as a fool to others. This is the ideal look of a leader. Furthermore, if you keep up an act of foolishness while meticulously planning on the inside, the enemy will drop his guard.

Stratagem 28: Lure the enemy to the roof then remove the ladderMake your army look weak and defenceless to lure the enemy into a trap, then surround and destroy them. On the other hand, this can also mean to intentionally trap your forces to boost their ferocity.

Stratagem 29: Deck the tree with false blossoms
Bluff to suppress the enemy psychologically. For example, if you make it look like your forces are far greater in number than they actually are, the enemy will be hesitant in attacking and you will have the lead. This is very effective when you are outnumbered.

Stratagem 30: Make the guest act as if he was the host
This is the survival strategy cuckoos use where they push the original babies out of a nest and hog the food that the mother brings. It is a strategy where you patiently wait for the right moment when you can sneak in and seize the authority, taking someone else’s resources for your own. An example of this stratagem would be when the reinforcement that is supposed to protect the allied country turn into an invading an army to take over the country.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 4 – Chaos Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

Chaos Stratagems are strategies that can be used to achieve victory when a war enters a chaotic state. Unlike the previous three chapters, the latter three chapters include tactics that can be used when the flow of war is against you.

Stratagem 19: Remove the firewood from under the pot 
This tactic teaches that one should attack the foundation of the enemy’s confidence to shake them. Also, there is a second meaning that teaches to cut off their supplies. No matter how strong the enemy is, they will be crushed easily without any food.

Stratagem 20: Disturb the water and catch a fish
If you disorder the enemy so that they have no idea what is happening, you can easily attain victory.

Stratagem 21: Slough off the cicada’s golden shell
Make a change yet make it look like to the enemy that you have not. It is a strategy where you keep up a strong defence on the surface and exhibit a state of readiness to intimidate the enemy, while moving your forces to a different location.

Stratagem 22: Shut the door to catch the thief
If you block the enemy’s movement and surround them, you can easily decimate them. However, if they are strong enough this plan may have the opposite effect and cause them to retaliate with more ferocity, thus you should only employ it when the enemy is weak.

Stratagem 23: Befriend a distant state while attacking a neighbour
Countries that are close to you are bound to have many troubles and friction with you, therefore it is far wiser to use an ally who is further away to deal with your enemy.

Stratagem 24: Borrow a passage to strike Guo
This means that you should expand your territory when the opportunity is right by manipulating the weak. If you use the resources of a weak ally to strike the enemy, you can reduce the costs to your army while destroying the enemy, essentially killing two birds with one stone.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 3 – Attacking Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

Attacking Stratagems are tactics that can utilised during a battle with the enemy.

Stratagem 13: Stomp the grass to scare the snake
Kill the startled snake as it leaps out of the grass. By taunting or provoking the enemy, you can lead them to give away their locations and create chaos.

Stratagem 14: Borrow a corpse to resurrect the soul
Bring back something from the past that is believed to have no value and alter it so they have value.

Stratagem 15: Entice the tiger to leave its mountain lair
If you lure the enemy out of their heavily guarded camp and then attack, your chances of victory increase.

Stratagem 16: In order to capture, one must let loose
When capturing an enemy, do not corner them completely but open a small exit for them. A cornered enemy with no escape can attack with even more ferocity. Thus, if you allow them to escape and chase them until they run out of energy and the will to fight, you can capture the enemy with little sacrifice. Furthermore, if you set an ambush or trap for the enemy, you can easily decimate them.

Stratagem 17: Tossing out a brick to get a jade gem
This means to toss out something useless to gain something valuable. It is a tactic that utilises baiting the enemy. The point of the tactic is to throw out bait that does not seem like bait. On the other hand, it is important to have a keen sense of judgement to ensure you do not take the enemy’s bait. The ability to look past the immediate gain and see the long-term cost is a valuable skill.

Stratagem 18: Defeat the enemy by capturing their chief
This is a principle that states that if you kill the enemy’s leader or their key units, the rest will fall apart naturally. A group without a leader will run around like headless chickens until they are destroyed.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 2 – Enemy Dealing Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

Enemy Dealing Stratagems are tactics you can use when you and the enemy have equal amount of forces. They can be used to increase your chance of winning in a close battle.

Stratagem 7: Create something from nothing
Even if you do not have something, make it look like you have it. Bluff by pretending you have a massive force to disorient the enemy and launch a surprise attack when they are off guard to achieve certain victory.

Stratagem 8: Sneak through Chencang without anyone knowing
Pretend to attack one place and launch a surprise attack some place else. If you hide your intention and deceive the enemy to avoid them, it is far more effective than facing them head on.

Stratagem 9: Watch the fire burn across the river
If there is internal unrest or threat within the enemy, do not attack them. Instead, wait and watch as they destroy themselves.

Stratagem 10: Hide a knife behind a smile
While setting the enemy at ease with a kind exterior, plan meticulously on the inside and wait for the right moment to destroy the enemy.

Stratagem 11: Sacrifice the plum tree to preserve the peach tree
This means to sacrifice the plum tree by letting it take the pests that usually attack the peach tree. If you utilise allies and surrounding countries well, you can deflect the damage you would receive to them.

Stratagem 12: Take the opportunity to pilfer a sheep
Do not look over even the smallest of an enemy’s flaws. Aggressively seize even the smallest opportunities.

Posted in History & Literature

Thirty-Six Stratagems: Chapter 1 – Winning Stratagems

Posted on by Jinavie

(For all 36 stratagems, click here: https://jineralknowledge.com/tag/thirtysix/?order=asc)

The Thirty-Six Stratagems is a book from ancient China that outlines 36 stratagems (a ruse to change the flow of battle or aide a victory). The author and the time of writing are unclear, but it incorporates much wisdom from The Art of War and Romance of the Three Kingdoms. Regardless of who wrote it, the Thirty-Six Stratagems is a must-read text as it outlines tactics that are very useful in war (especially the harsh battlefield of life) in a way that is easy for anyone to understand and learn. The thirty-six stratagems are divided into six categories: Winning Stratagems, Enemy Dealing Stratagems, Attacking Stratagems, Chaos Stratagems, Proximate Stratagems and Desperate Stratagems. Let’s learn them chapter by chapter.

Winning Stratagems are tactics that you can employ when you have all the conditions for a victory. They are tactics that utilise meticulous planning and deception to confuse the enemy and make victory certain.

Stratagem 1: Deceive the heavens to cross the ocean
People are not suspicious of things they have seen repeatedly. This is a perfect opportunity to seize. Give the enemy false reassurance through repeating a common act and strike when they are off guard.

Stratagem 2: Besiege Wei to rescue Zhao
Instead of facing the enemy head on, detour around them to strike their main base. It is a tactic where you capture something the enemy holds dear and using it to control the enemy as you wish.

Stratagem 3: Kill with a borrowed knife
Hide yourself while using a third party to bring harm to the enemy.

Stratagem 4: Leisurely await for the laboured
If you camp and rest at a strategic spot and strike the enemy after they have tired from a long march, you can raise the chance of winning. Also, laying siege to the enemy when they are short of food and tiring them out is another way to bring victory.

Stratagem 5: Loot a burning house
This means that you should strike when the enemy is in chaos when their base is on fire. In other words, take the opportunity when the enemy is in a tough spot and attack.

Stratagem 6: Make a sound in the east, then strike in the west
Distract the enemy’s attention to a different place and attack from a completely unpredicted location so that the enemy is unprepared.

Posted in History & Literature

Spy

Posted on by Jinavie

Ancient Chinese military strategist Sun Tzu dealt with the topic of spies extensively in his book The Art of War. He believed that information and intelligence determined the flow of war and spies were a vital element. Sun Tzu talked about five types of spies.

  • Local spies (鄕間): Use the enemy’s people
  • Internal spies (內間): Use the enemy’s officials (like a resident spy)
  • Double spies (反間): Use the enemy’s spies to feed the wrong information
  • Dead spies (死間): Has a possibility of betraying, so use them to spread misinformation, leading the enemy to persecute them
  • Living spies (生間): Use agents that can gather intelligence and return safely back to report their findings, the most useful type of spies