There have been several papers and blog posts written about the more recent posits proposals. https://marc-b-reynolds.github.io/math/2019/02/06/Posit1.html htt

There have been several papers and blog posts written about the more recent posits proposals. https://marc-b-reynolds.github.io/math/2019/02/06/Posit1.html https://marc-b-reynolds.github.io/math/2019/02/06/Posit1.htm... https://hal.inria.fr/hal-01959581v2 https://hal.inria.fr/hal-01959581v2 https://hal.inria.fr/hal-02131982 https://hal.inria.fr/hal-02131982 The bottom line is they are a tradeoff; they certainly aren't purely better than IEEE floats. Plus they seem to have a non-trivial hardware cost (one of the linked papers shows the adder is twice as large as the equivalent IEEE adder and has double the latency!)