Very P, AtD stream: missing Freud and Einstein

[Mark Kohut]

 Remember the good plist discussions over the fact that neither Einstein nor Freud themselves appear in AtD, a book set
during the time of their early work leading to such historical consequences?  I remember coming away from those discussions
believing what at least one--maybe more---plisters said: 
Pynchon dealt with their world and incipient discoveries but wanted them left unliteralized. 

Look at this from Barbara Tuchman's Foreword to "The Proud Tower: A Portrait of the World Before the War, 1890--1914"
" In choice of subjects the criterion I used was that they must be truly representative of the period in question and have
exerted their major influence on civilization before 1914, not after. This consideration ruled out the automobile and airplane,
Freud and Einstein and the movements they represented. I also ruled out eccentrics, however captivating."

And did anyone comment that the automobile and airplane---not the Chums dirigible---are not central in AtD either during the time 
they were happening?