It is related to the 2nd law of thermodynamics
The second law of thermodynamics dictates that heat energy will naturally flow from a hotter object to a cooler object when they come into contact. This law describes the direction of heat transfer between objects and the associated increase in entropy in the system.
Entropy tends to increase in a system.
The 1st Law of thermodynamics is a restatement of the law of conservation of energy.
By the first law of thermodynamics, energy is conserved - i.e. the sum of the useful work and the energy lost to heat will equal the energy you started with. The second law states that you will never get 100% energy efficiency.
The first law of thermodynamics states that the energy of an isolated system is constant.
Magic
The second law of thermodynamics dictates that heat energy will naturally flow from a hotter object to a cooler object when they come into contact. This law describes the direction of heat transfer between objects and the associated increase in entropy in the system.
Entropy tends to increase in a system.
conservation of energy law .
The 1st Law of thermodynamics is a restatement of the law of conservation of energy.
By the first law of thermodynamics, energy is conserved - i.e. the sum of the useful work and the energy lost to heat will equal the energy you started with. The second law states that you will never get 100% energy efficiency.
The first law of thermodynamics states that the energy of an isolated system is constant.
The first law of thermodynamics is the conservation of energy applied to thermal systems, stating that energy cannot be created or destroyed, only transferred or transformed in a system.
inertia
You can't get ahead (1st law - conservation of energy - you can't get more energy out than you put in) You can't even break even (2nd law - 100% efficiency is not possible - some energy will always be lost as heat to the surroundings, thus increasing the overall entropy of the universe) You can't get out of the game (no real process is reversible)
It is assumed as part of the second law, but the second law is really all about what happens to the energy as it changes form. If energy were not conserved (1st Law), then it might be possible to violate the second law by magically creating some energy out of nowhere to allow the work coming out of a system to be equal to the energy input even when some is lost to heat.
I like the quote from Charles Percy Snow, Baron Snow, CBE (or possibly Allen Ginsberg - depending on who you ask) which applies equally well to thermodynamics and ultimately gambling. 1st Law: You'll never get ahead of the house - or - you can't win 2nd Law: not only that - you'll never break even.(the house always takes its percentage) In more scientific terms: 1st Law - the energy of the universe is conserved in any process - or - you can neither create no destroy energy. With the famous equation E=mc², we have to modify that to say that the matter and energy of the universe is constant - or - you can't create or destroy matter/energy - just change its form. 2nd Law - you cannot covert all energy in the form of heat to an equivalent amount of work - some will be lost as heat to the environment - or - You cannot create a heat engine which extracts heat and converts it ALL to useful work - or - whenever any source of energy is used to do work, there will always be an increase in the entropy of the universe from the heat lost from the process (in this case we might think of entropy as the "house" in gambling).