Help me please to understand the marked part:
What does it mean "JFK had no inside into the practicality of space travel"?Quote:
Kennedy, all right JFK himself. When he was in office, he
stood before the world and promised them a man on the moon within
10 years. Thing is nobody had started working on a space program at
that point. JFK had no data to back up his claims, no inside into the
practicality of space travel.