Comment on "Temporal Scaling at Feigenbaum points and non-extensive   thermodynamics" by P. Grassberger
  In a recent letter [PRL 95, 140601 (2005)], P. Grassberger addresses the very interesting issue of the applicability of q-statistics to the renowned Feigenbaum attractor. However several points are not in line with our current knowledge, nor are the interpretations that he advances. 
Alberto Robledo