How does the ending of 2001 fit with the rest of the book?

What function is served by the story about the man-ape?

2001 presents a complex view of technology. On one hand, as a science fiction work, it enthusiastically explores the possibility of new technologies. On the other hand, it seems to criticize unchecked technological innovation. Discuss.

Discuss the role of those who planned the mission and their culpability in the failure of Hal.

What would be the implications for humans of the discovery of an extra- terrestrial intelligence?