Is nature lazy? It certainly is slow. Look how long it took for life as we know it to evolve.
The ancient Greek philosopher-scientists knew that light was lazy. They showed that when light is reflected from a surface the angle of reflection is equal to the angle of incidence. Whatever the speed of light was, this reflection rule resulted in the shortest, and therefore the fastest, path between a source of light, an observer, and a reflective surface between them. Light takes the shortest path.
In the era historians refer to as the Enlightenment, this came to be called the principle of least action.
Nature has a number of definitions; when I write Nature, I mean the Universe or totality of things, including the principles that cause it to exist and determine the specifics of existence. Primitive people take the ancient idea of a god (tree, rock, ghost, or human) and try to amplify that up until they have a God that created and rules over, or at least within, Nature. Whether you believe in God or Nature, the physics experiments come out the same.
So the principle of least action implies that God is lazy too. God's laziness makes the universe predictable.
You can make a lot out of this simple principle, which applies to solid physical objects as well a light and energy fields. To understand this, unfortunately, the path of least effort leads through the quicksand of something called the calculus of variations. And of course, most people in the world need to start working or fighting or begging before they even get to regular calculus in school. On the other hand, if you do happen to study calculus and then the calculus of variations, you can get anything you want in the world. You will be able to see deeper and further than other humans, and make of it what you will.
With your math magic, you are now ready to do Lagrangian dynamics, among other things. You can see where Newton's Laws come from: a lazy, symmetrical universe (designed by a lazy God). And using only the principle of laziness, you can work out Schrodinger's equation (for the motion of a non-relativistic particle in a potential field) [Byron & Fuller, Mathematics of Classical and Quantum Physics, p. 71]. Thus you have the key to quantum physics. In retrospect it is surprising no one came up with it before Erwin Schrodinger.
Which brings up another important point: Chance. Or probability, if you like the more modern formalism. Many Romans worshipped Chance, or Fortuna (Tyche to the Greeks). In addition to the chance events of human lives, the practice of gambling was already well-developed. Dice pre-exist recorded history, as did other methods of casting lots or determining oracles. The minor Christian god Jesus Christ may have been an incarnation of chance, as it was written in the Bible (King James translation), Mark 15:24, "And when they had crucified him, they parted his garments, casting lots upon them, what every man should take." [Alternate versions found in Matthew 27:25, where this is attributed to fulfilling a Jewish prophecy; Luke 23:34; and John 23:24]
The role of probability in quantum physics, and in particular the Uncertainty Theorem, has led to a lot of guru-driven nonsense spouted in the popular arena of wishful thinking. There is probability in quantum physics, which is to say in Nature, but it is of a type. We say things like "the probability of finding an electron within this space-time region in our experiment is 40%." It sounds like "there is a 40% chance of rain today." But if an experiment where the equations create a 40% expectation is run a few hundred times and the electron is only found 37% of the time, what physicists do is alter their equations. Afterwards it looks like they got the 37% figure from theory, but in fact they got it from practice and molded their theory to their results. See Inward Bound by Abraham Pais for numerous historical examples.
Asking where an electron is in space-time relative to an atomic nucleus is actually simply asking a bad question, although strangely it is fine to ask where the same electron is traversing a vacuum tube. Chance in quantum land is probably best seen in radioactive decay, where it is clearly a result of a probabilistic decay mechanism, not of observational or prediction problems.
The principle of least action leads to quantum probability equations. So in some sense the rules of probability in quantum phyics are themselves predictable. Just as we cannot be sure what any throw of the dice may bring, but we can predict the outcome of large numbers of throws using the rules of probability.
In classical physics, laziness appears to be exact (assuming you know exactly everything about your system), or too pick an exact shortest path. In quantum physics the mask of exactness is removed, but the laziness of Nature is still the rule.
Book references:
Sunday, June 6, 2010
Thursday, June 3, 2010
Gaza, Blockades, Embargoes, Pirates and Privateers
Some people are in an uproar because Israel used what anyone else would call excessive force to capture a Turkish aid ship headed for Gaza in Palestine. Some people are just beginning to notice that most post-Holocaust Israelis adopted the core Nazi values of racism and killing anyone who gets in your way (which were core American values until the 1960s, truth be told). Palestinians just happened to be in the way of Jews who wanted to resurrect the ancient kingdom of Judea.
My analysis is that the Israeli high command probably gave advance orders to their gunmen raiding the charity fleet to use lethal force because they wanted to disrupt the impending settlement talks with the Palestinians. They think President Barack Obama will be weakened by the November elections in the United States. They think they can get another postponement, or a better deal after November. They are willing to take the short-term hit for the perceived long-term gain.
If indeed some of the passengers on the Mavi Marmara tried to stop the Israeli gunmen from boarding their ship, it was within their rights of self-defense. Pacifists would say it was wrong, and with their weird non-violence logic (see Non-violence and its Violent Consequences) would have blamed the victims on the ship, not the gunmen. If the point was to show the brutality of the State of Israel and bring attention to its illegal blockade of Gaza, however, those who defended themselves, and made the ultimate sacrifice, did the right thing.
Turn it around to see the justice. A bunch of German liberals decide to take supplies to a concentration camp or ghetto to feed Jews during World War II. Nazi gunmen stop them, first with beatings, then with bullets. Who would justify such Nazi actions, except the Nazis themselves?
Many wars have started with embargoes or blockades at sea. Embargoes are not in themselves acts of war, although they certainly can provoke wars. Blockades are acts of war. If a war has not already begun, a blockade is a good start. Remember the American War of 1812? The British blockade of Europe (they were at war with France and its allies) was one of the main factors.
The American Revolutionary War is thought of as a time of sacrifice, and for most of both the terrorists (I mean patriotic ancestors) and those Americans who remained loyal to Great Britain it was. But some Americans made out like bandits: privateers. They were authorized by Congress to seize British ships, and captured a lot of profits in the process. If the loyalists had won the war, in retrospect we would call them pirates.
Self-defense is a right, but it is a tricky right that runs up against the self-defense and private property rights of others. Surely Jews in Europe had a right to defend themselves against Adolf Hitler and his gunmen in the 1930s and 1940s. Surely the Palestinians had a right to defend themselves against the mainly German, Jewish invaders in the 1940s. So where should the Jews in European camps have gone? In retrospect, back to Germany. Anti-semitism was discredited and the Nazi Party was banned. They would have been safe there, but they did not feel they would be safe there, which is understandable.
As I said, choosing to not sell to a nation through an embargo is not an act of war, whereas a blockade usually is an act of war. But there are gray areas. After World War II started in Europe the United States, the Netherlands, and the British Empire joined in an embargo against Japan. The Japanese felt this was an act of war, since it meant they could get no petroleum, which they needed to defend their own empire. Attempts at negotiations failed largely because President Franklin D. Roosevelt wanted a war to cement American dominance in East Asia, while Great Britain wanted a war because that would also involve America in the fight against Germany. Sure, if the embargo had caused the Japanese to surrender without a fight, America would not need to declare war. In 1812 Britain had the embargo, but America declared war. When you are a global economic superpower, I think it is fair to say that an embargo is a de facto declaration of war.
I believe the United States bears much responsibility for the situation in Gaza. We demanded free elections as a condition for statehood for Palestine. Then, Hamas won the elections. The United States then reneged on its promises. Americans may have missed that hypocritical song and dance routine, but Palestinians and Moslems in general did not.
I see no ethical distinctions between Hamas and Likud. In American politics the practical distinction is in the number of Jewish voters in swing states like Florida and New York, and the ability for American Zionists to contribute to election campaigns.
My analysis is that the Israeli high command probably gave advance orders to their gunmen raiding the charity fleet to use lethal force because they wanted to disrupt the impending settlement talks with the Palestinians. They think President Barack Obama will be weakened by the November elections in the United States. They think they can get another postponement, or a better deal after November. They are willing to take the short-term hit for the perceived long-term gain.
If indeed some of the passengers on the Mavi Marmara tried to stop the Israeli gunmen from boarding their ship, it was within their rights of self-defense. Pacifists would say it was wrong, and with their weird non-violence logic (see Non-violence and its Violent Consequences) would have blamed the victims on the ship, not the gunmen. If the point was to show the brutality of the State of Israel and bring attention to its illegal blockade of Gaza, however, those who defended themselves, and made the ultimate sacrifice, did the right thing.
Turn it around to see the justice. A bunch of German liberals decide to take supplies to a concentration camp or ghetto to feed Jews during World War II. Nazi gunmen stop them, first with beatings, then with bullets. Who would justify such Nazi actions, except the Nazis themselves?
Many wars have started with embargoes or blockades at sea. Embargoes are not in themselves acts of war, although they certainly can provoke wars. Blockades are acts of war. If a war has not already begun, a blockade is a good start. Remember the American War of 1812? The British blockade of Europe (they were at war with France and its allies) was one of the main factors.
The American Revolutionary War is thought of as a time of sacrifice, and for most of both the terrorists (I mean patriotic ancestors) and those Americans who remained loyal to Great Britain it was. But some Americans made out like bandits: privateers. They were authorized by Congress to seize British ships, and captured a lot of profits in the process. If the loyalists had won the war, in retrospect we would call them pirates.
Self-defense is a right, but it is a tricky right that runs up against the self-defense and private property rights of others. Surely Jews in Europe had a right to defend themselves against Adolf Hitler and his gunmen in the 1930s and 1940s. Surely the Palestinians had a right to defend themselves against the mainly German, Jewish invaders in the 1940s. So where should the Jews in European camps have gone? In retrospect, back to Germany. Anti-semitism was discredited and the Nazi Party was banned. They would have been safe there, but they did not feel they would be safe there, which is understandable.
As I said, choosing to not sell to a nation through an embargo is not an act of war, whereas a blockade usually is an act of war. But there are gray areas. After World War II started in Europe the United States, the Netherlands, and the British Empire joined in an embargo against Japan. The Japanese felt this was an act of war, since it meant they could get no petroleum, which they needed to defend their own empire. Attempts at negotiations failed largely because President Franklin D. Roosevelt wanted a war to cement American dominance in East Asia, while Great Britain wanted a war because that would also involve America in the fight against Germany. Sure, if the embargo had caused the Japanese to surrender without a fight, America would not need to declare war. In 1812 Britain had the embargo, but America declared war. When you are a global economic superpower, I think it is fair to say that an embargo is a de facto declaration of war.
I believe the United States bears much responsibility for the situation in Gaza. We demanded free elections as a condition for statehood for Palestine. Then, Hamas won the elections. The United States then reneged on its promises. Americans may have missed that hypocritical song and dance routine, but Palestinians and Moslems in general did not.
I see no ethical distinctions between Hamas and Likud. In American politics the practical distinction is in the number of Jewish voters in swing states like Florida and New York, and the ability for American Zionists to contribute to election campaigns.
Tuesday, June 1, 2010
Horst Kohler, Bad Politician
Was it a slip up? German suddenly-ex-President Horst Kohler (Köhler) said (presumably in German), in public: “A country of our size, with its focus on exports and thus reliance on foreign trade, must be aware that military deployments are necessary in an emergency to protect our interests, for example, when it comes to trade routes, for example, when it comes to preventing regional instabilities that could negatively influence our trade, jobs and incomes.”
Most Americans would not have noticed the gaff. What German politicians say is seldom covered in the United States. But Horst resigned, probably after he got the "resign or be terminated" message from powerful world leaders like Obama, Chancellor Angela Merkel, Steve Jobs, and unnamed oil tycoons. Kohler (or Köhler) was a friend of Angela, so she probably felt bad handing him the ultimatum.
Imagine if Barack Obama, or his Vice-president .... um ... Joe Biden, said “A country of our size, with its focus on exports and thus reliance on foreign trade, must be aware that military deployments are necessary in an emergency to protect our interests, for example, when it comes to trade routes, for example, when it comes to preventing regional instabilities that could negatively influence our trade, jobs and incomes.”
The problem is the implications. "Of course, we just use the word terrorist to influence the public. Our killers are soldiers. Our opponents have terrorists and gunmen. It really is not about religion. it is all about money. Afghanistan is about controlling raw materials, global trade, and the allocation of investments. Same as it ever was."
Don't worry, Barack and Angela, the average German, much less the average American, has the political memory of a squirrel. Few follow the political news in detail, and most of them have already forgotten ... what was his name?
Most Americans would not have noticed the gaff. What German politicians say is seldom covered in the United States. But Horst resigned, probably after he got the "resign or be terminated" message from powerful world leaders like Obama, Chancellor Angela Merkel, Steve Jobs, and unnamed oil tycoons. Kohler (or Köhler) was a friend of Angela, so she probably felt bad handing him the ultimatum.
Imagine if Barack Obama, or his Vice-president .... um ... Joe Biden, said “A country of our size, with its focus on exports and thus reliance on foreign trade, must be aware that military deployments are necessary in an emergency to protect our interests, for example, when it comes to trade routes, for example, when it comes to preventing regional instabilities that could negatively influence our trade, jobs and incomes.”
The problem is the implications. "Of course, we just use the word terrorist to influence the public. Our killers are soldiers. Our opponents have terrorists and gunmen. It really is not about religion. it is all about money. Afghanistan is about controlling raw materials, global trade, and the allocation of investments. Same as it ever was."
Don't worry, Barack and Angela, the average German, much less the average American, has the political memory of a squirrel. Few follow the political news in detail, and most of them have already forgotten ... what was his name?
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