Interesting rebuttal from someone in the field (who is actually quoted in the paper): http://backreaction.blogspot.com/2018/12/no-negative-masses-have-not.html

Interesting rebuttal from someone in the field (who is actually quoted in the paper): http://backreaction.blogspot.com/2018/12/no-negative-masses-have-not.html http://backreaction.blogspot.com/2018/12/no-negative-masses-...