LyndonLarouche--> Energy flux density is still a fundemantal factor in non-animal-human-progress. I wrote about this in 2002 Cryonics Magazine (Alcor) under Classical Superhumanism. Larouche has written about energy flux density in many EIR's from 2000 to 2012. [LarouchePub.com/search]

The human species is not an animal species, although its 
members may have animal bodies. The distinction of our spe-
cies from all other living species, is that we increase not only 
the potential relative population-density of the entirety of the 
human species, as no other living species can do this, and not 
only  are  able  to  do  that,  but  also  must  do  that  through  such 
modes of principled change which we associate with progress 
in  truly  Classical  culture,  and  the  application  of  ever  higher 
energy-flux-densities represented by application of discover-
ies in the domain of physical science.