The thermodynamic description of gravity has a history that goes back at least to research on

black hole thermodynamics by

Bekenstein and

Hawking in the mid-1970s. These studies suggest a deep connection between

gravity and thermodynamics, which describes the behavior of heat. In 1995,

Jacobson demonstrated that the

Einstein field equations describing relativistic gravitation can be derived by combining general thermodynamic considerations with the

equivalence principle.

[1] Subsequently, other physicists, most notably

Thanu Padmanabhan, began to explore links between gravity and

entropy.

[2][3]
**Erik Verlinde's theory**
In 2009,

Erik Verlinde proposed a conceptual model that describes gravity as an entropic force.

[4] He argues (similar to Jacobson's result) that gravity is a consequence of the "information associated with the positions of material bodies".

[5] This model combines the thermodynamic approach to gravity with

Gerard 't Hooft's

holographic principle. It implies that gravity is not a

fundamental interaction, but an

emergent phenomenon which arises from the statistical behavior of microscopic

degrees of freedom encoded on a holographic screen. The paper drew a variety of responses from the scientific community.

Andrew Strominger, a string theorist at Harvard said "Some people have said it can't be right, others that it's right and we already knew it – that it’s right and profound, right and trivial."

[6]
In July 2011, Verlinde presented the further development of his ideas in a contribution to the Strings 2011 conference, including an explanation for the origin of dark matter.

[7]
Verlinde's article also attracted a large amount of media exposure,

[8][9] and led to immediate follow-up work in cosmology,

[10][11] the

dark energy hypothesis,

[12] cosmological acceleration,

[13][14] cosmological inflation,

[15] and

loop quantum gravity.

[16] Also, a specific microscopic model has been proposed that indeed leads to entropic gravity emerging at large scales.

[17] Entropic gravity can emerge from quantum entanglement of local Rindler horizons.

[18]