  This article is based on the talk "Fractional Spin Gravity" presented in the
31st International Colloquium on Group Theoretical Methods in Physics, Rio de
Janeiro, 19-25th June 2016. There we emphasised an implication of the works
[1,2] by N. Boulanger, P. Sundell and the author on fractional spin extensions
of 2+1D higher spin gravity. This is that higher spin gravity may govern
interactions of pseudo-particles excitations in the (fractional) quantum Hall
effect. More generally, fractional spin currents in 2+1D source higher spin
gravity curvatures.
