I was watching a video that explained the Star Baby was the astronaut himself-- he was an old man then he looked toward the bed and saw himself in bed dying then he became the Star Baby I think in the book as he ( as the Star baby) looked down on earth he saw all the space weapons and waved his hand and the weapons vanished but of course the movie does not explain that in the narrative.
2001, while groundbreaking in many ways, has several layers within it and yet even if you read the book you're kind of stuck drawing your own conclusions as to what's going on
I wish they'd have explained a bit more on the monolith that was found on the moon. The book explained it was a warning alarm to the universe that man has taken the next step and has learned to travel into space. It let everyone in the universe know this primitive beast they felt was a danger was now loose.
Time to start locking the back door.
Watching the news these days those aliens were smart to have an alarm on the moon because we ARE dangerous
Not all of us to be sure but enough of us are not the best examples of humanity