This paper; https://arxiv.org/abs/1701.04149, Non-extensive Statistics Solution to the Cosmological Lithium Problem, offers a plausible solution to the cosmic lithium problem that has baffled astrophysics, and BBN aficionados, for decades. Unlike prior efforts, it does not invoke any BTSM particles or new physics, just a twist on statistical modeling which looks entirely reasonable. Past efforts have failed largely because you cannot get an acceptable range for lithium abundance without fouling up production of other light elements during BBN. I am curious if this approach [Tsallis statistics] has been used before in astrophysical applications. All I could turn up was some fairly obscure papers on DM distribution and interstellar turbulence.