Well Quinn defines Free energy on his site from the economic point of view, where there is no or negligible cost.
The other definition is the physics one, where the extra energy in a system that can be used is known as Free energy.
Both are right, in fact Quinn refers to the physics definition of Free energy in his videos.
The other definition is the physics one, where the extra energy in a system that can be used is known as Free energy.
Both are right, in fact Quinn refers to the physics definition of Free energy in his videos.