I'm currently reading a book on 'why 50 people with phds believe in creation' as part of a swap with a friend at work. I lent him Carl Sagan's Cosmos in return.
One thing that baffles me in all the arguments that creationists put forward is their appeal to the Second Law of Thermodynamics. Basically they state that:
a) In a closed system, entropy increases (ie available energy decreases over time)
I have no problem there, its part of the definition of the 2nd Law.
Then they state:
b) Evolution sees a decrease in entropy over time - ie more complex organisms have evolved from primitive single celled life and pre-biota complex molecules before that.
Again, I have no problem with that general description.
The part I *hate* to see them say then is that:
c) "Entropy increases in a closed system. Evolution sees an increase in order ('decrease in entropy') therfore evolution breaks the Second Law of Thermodynamics therefore God did it.
Their entire argument falls over on their failure to understand the difference between a closed and open thermodynamic system. They are falsely equating the Earth with a closed, thermodynamically sealed system. Now, in any system, in order to decrease the entropy you need to input energy or do work. You need an external energy source. Do we have one of those available to us here on Earth?
You fucking bet we do.
And since Earth is capturing a fraction of the total energy output of the sun, and the sun is continually losing energy out into open space, the solar system (which you can approximate as a closed thermodynamic system since the sun accounts for 99.9999% of the energy flux into/out of it) then the net entropy of the solar system is increasing in accordance with the second law of thermodynamics.
Short version: we are the beneficiaries of a localised eddy in the solar energy stream.
One thing that baffles me in all the arguments that creationists put forward is their appeal to the Second Law of Thermodynamics. Basically they state that:
a) In a closed system, entropy increases (ie available energy decreases over time)
I have no problem there, its part of the definition of the 2nd Law.
Then they state:
b) Evolution sees a decrease in entropy over time - ie more complex organisms have evolved from primitive single celled life and pre-biota complex molecules before that.
Again, I have no problem with that general description.
The part I *hate* to see them say then is that:
c) "Entropy increases in a closed system. Evolution sees an increase in order ('decrease in entropy') therfore evolution breaks the Second Law of Thermodynamics therefore God did it.
Their entire argument falls over on their failure to understand the difference between a closed and open thermodynamic system. They are falsely equating the Earth with a closed, thermodynamically sealed system. Now, in any system, in order to decrease the entropy you need to input energy or do work. You need an external energy source. Do we have one of those available to us here on Earth?
You fucking bet we do.
If you need a hint, go outside and look up
And since Earth is capturing a fraction of the total energy output of the sun, and the sun is continually losing energy out into open space, the solar system (which you can approximate as a closed thermodynamic system since the sun accounts for 99.9999% of the energy flux into/out of it) then the net entropy of the solar system is increasing in accordance with the second law of thermodynamics.
Short version: we are the beneficiaries of a localised eddy in the solar energy stream.