Originally Posted by horatio
Precisely, setting the Eugenics Wars into the 90s in a show that was produced during the 60s translates into "the not too distant future".
The basic idea behind all that "pre-history" of Trek seems to be that humankind might go through hell before things start to improve, a pretty natural idea during the Cold War.
The cold war though did serve its purpose for getting us to the moon but then stalling out a program to follow up with more ambitious manned space projects. Even the type and number of "probes" sent out has been less than could have been.