Entropic Gravity

Gravity as emergent from information and entropy

Drag the test particle, or use the slider, to see entropy drive apparent gravity. Arrow keys on the diagram also work.

Distance of test particle from M

Entropy Gradient

ΔS/Δr = 0.00 k_B per unit r

Apparent Force

F = 0.00 units

Screen Temperature

T = 0.00 T₀

F = T ΔS/Δr. The entropy gradient stays constant as the particle moves; the screen temperature carries the whole 1/r² falloff, so the force tracks the temperature.

Central mass

Holographic screen

Test particle

Temperature: hot near M, cool far

In Verlinde's framework, gravity is not a force that acts across empty space. It is the statistical tendency of entropy to increase. A mass approaching a holographic screen changes the entropy, and that entropy gradient is what we experience as gravitational attraction. Gravity is thermodynamics in disguise.