The Only Use of
Iron Curtain
in
The Three-Body Problem
- This was the theory of "contact as symbol" proposed by sociologist Bill Mathers of RAND Corporation in his book, The 100,000-Light-Year Iron Curtain: SETI Sociology.†
p. 176.1
Definition:
a phrase popularized by Winston Churchill in 1946 to describe the demarcation between democratic and communist countries in Europe