Don DeGracia
New
BACK TO ALEX'S QUESTION
So I wanted to try to get back on topic. We seem to have gotten lost in Experience, and gone off on Maya and God and stuff like that. But I would like to get back to Alex's question at the end of my interview about treating yoga as scientific.
I would suggest the key point here is the link between the gunas of yogic and Hindu philosophy and an important branch of modern physics called Dynamics.
Now, as I get to know those of you participating here, I see that philosophy gets a lot of air time and there is not a lot of discussion of specific scientific stuff. However, if I were to try to discuss this on a physics forum, they would run me out with pitch forks, torches, and hand axes, so let's see if we can try to develop something here in a more hospitable environment.
I begin by reminding you in Episode 201, Alex interviewed Ralph Abraham. Dr. Abraham is one of the leading workers in nonlinear dynamics in the 20th century. He did his stuff in the 1960s and there has been A LOT of water under the bridge since then. This stuff is now taught to undergraduates in physics and engineering (if you can sit through the 45 min, it really is an excellent lecture I've linked to).
Ralph spoke about "chaos theory". "Chaos" is just one type of dynamical system, technically called "dynamics of strange attractors". The overall field however is not too difficult in a broad sense because there are only three categories of dynamical systems called:
1. Fixed point attractors
2. Periodic attractors
3 Chaotic attractors
In an earlier post, I mentioned a pendulum. If a real pendulum swings in the air, this is an example of a fixed point attractor. What this means is, you push the pendulum, and it swings, but with each swing, it swings less until it comes to a stop pointing straight down. The point where it stops is called a "fixed point" because the system stops changing. Or, technically, the rate of change equals zero at the attractor point.
An example of a periodic attractor is an imaginary pendulum in a frictionless environment. Here, if you give the pendulum a push, it will swing back and forth, and the wings will never decay because there is no friction. It will just go back and forth forever. In this case, the attractor state traces out a circle and the system just keeps going round and round on the circle forever. A real life example of something that approximates a periodic dynamical system is the solar system. At least at time scales that are long compared to us humans, the planets rotate round and round the Sun in a periodic fashion.
Chaotic dynamics are a little harder to explain, but the weather is a good example where it seems periodic but does not exactly repeat each time around. Like here in Michigan, we go through the four seasons every year, but each year the daily details are different from any other year. This is a hallmark of a chaotic dynamical system.
So, what I think is the most important part of What Is Science? is my suggestion that the three types of dynamics identified in modern physics are identical to the three gunas of ancient Indian thought. The three gunas are:
1. Tamas. This is normally considered "inertia" or "lack of motion" and I equate it to fixed point attractors like the real pendulum whose motion comes to a stop.
2. Satva. This is "harmony" where things are balanced. I associate this with periodic motions, like sound waves, that literally do make harmonies, like what the ancient Greeks identified.
3. Rajas: This is "excitment" or "chaos" in hindu thought. I equate this to chaotic attractors.
Now, beyond making these links, the most interesting implication is that, in Hindu and yogic thinking, if you were to ask: what is moving? What is the substance that is tamas, or satva or rajas? They would say "nothing". Nothing is moving. There are only the patterns of movement. Whereas here in the West, even though we have identified scientifically the 3 basic types of movement, we have not yet recognized that nothing moves. We still cling to the idea that "something" is moving.
So, an important aspect, but by no means the only aspect, of my claim that yoga is scientific is because this very substantial link can be drawn between the gunas and modern dynamics.
Anyone want to jump in and comment? Again, I know it will be hard to get too technical about it, and we might again slip into philosophy, but I think it would be interesting to hear how this idea strikes people.
Thank you!
Don
So I wanted to try to get back on topic. We seem to have gotten lost in Experience, and gone off on Maya and God and stuff like that. But I would like to get back to Alex's question at the end of my interview about treating yoga as scientific.
I would suggest the key point here is the link between the gunas of yogic and Hindu philosophy and an important branch of modern physics called Dynamics.
Now, as I get to know those of you participating here, I see that philosophy gets a lot of air time and there is not a lot of discussion of specific scientific stuff. However, if I were to try to discuss this on a physics forum, they would run me out with pitch forks, torches, and hand axes, so let's see if we can try to develop something here in a more hospitable environment.
I begin by reminding you in Episode 201, Alex interviewed Ralph Abraham. Dr. Abraham is one of the leading workers in nonlinear dynamics in the 20th century. He did his stuff in the 1960s and there has been A LOT of water under the bridge since then. This stuff is now taught to undergraduates in physics and engineering (if you can sit through the 45 min, it really is an excellent lecture I've linked to).
Ralph spoke about "chaos theory". "Chaos" is just one type of dynamical system, technically called "dynamics of strange attractors". The overall field however is not too difficult in a broad sense because there are only three categories of dynamical systems called:
1. Fixed point attractors
2. Periodic attractors
3 Chaotic attractors
In an earlier post, I mentioned a pendulum. If a real pendulum swings in the air, this is an example of a fixed point attractor. What this means is, you push the pendulum, and it swings, but with each swing, it swings less until it comes to a stop pointing straight down. The point where it stops is called a "fixed point" because the system stops changing. Or, technically, the rate of change equals zero at the attractor point.
An example of a periodic attractor is an imaginary pendulum in a frictionless environment. Here, if you give the pendulum a push, it will swing back and forth, and the wings will never decay because there is no friction. It will just go back and forth forever. In this case, the attractor state traces out a circle and the system just keeps going round and round on the circle forever. A real life example of something that approximates a periodic dynamical system is the solar system. At least at time scales that are long compared to us humans, the planets rotate round and round the Sun in a periodic fashion.
Chaotic dynamics are a little harder to explain, but the weather is a good example where it seems periodic but does not exactly repeat each time around. Like here in Michigan, we go through the four seasons every year, but each year the daily details are different from any other year. This is a hallmark of a chaotic dynamical system.
So, what I think is the most important part of What Is Science? is my suggestion that the three types of dynamics identified in modern physics are identical to the three gunas of ancient Indian thought. The three gunas are:
1. Tamas. This is normally considered "inertia" or "lack of motion" and I equate it to fixed point attractors like the real pendulum whose motion comes to a stop.
2. Satva. This is "harmony" where things are balanced. I associate this with periodic motions, like sound waves, that literally do make harmonies, like what the ancient Greeks identified.
3. Rajas: This is "excitment" or "chaos" in hindu thought. I equate this to chaotic attractors.
Now, beyond making these links, the most interesting implication is that, in Hindu and yogic thinking, if you were to ask: what is moving? What is the substance that is tamas, or satva or rajas? They would say "nothing". Nothing is moving. There are only the patterns of movement. Whereas here in the West, even though we have identified scientifically the 3 basic types of movement, we have not yet recognized that nothing moves. We still cling to the idea that "something" is moving.
So, an important aspect, but by no means the only aspect, of my claim that yoga is scientific is because this very substantial link can be drawn between the gunas and modern dynamics.
Anyone want to jump in and comment? Again, I know it will be hard to get too technical about it, and we might again slip into philosophy, but I think it would be interesting to hear how this idea strikes people.
Thank you!
Don