On: Information Is Physics

[killjoywashere]

See thermal physics, which combines statistical mechanics and thermodynamics:

https://en.wikipedia.org/wiki/Thermal_physics

For a computation focused example, see Schneier's essay on strength of a 256-bit symmetric cipher:

https://www.schneier.com/blog/archives/2009/09/the_doghouse_...

Edit for completeness: rest energy converts to mass as follows: E = m*c^2