Picture above is from the film '2010', so it's not HAL – but…

On the 50th anniversary of Yuri Gagarin's spaceflight I finally have an excuse to point out to the excellent blogpost on Kosmograd:  Why 2010 wont be like '2010'

Whereas HAL looked out into our world, today we look into the world created within the computer. […] Our ambition seems to have shrunk to the size of a touchscreen tablet. Expect a monolith of a very different kind.

Good night song: Miljoonasade – Fly on Juri Gagarin

the Greek word for error or failure, used by Aristotle in his Poetics (4th century BCE) to designate the false step that leads the protagonist in a tragedy to his or her downfall. The term has often been translated as ‘tragic flaw’, but this misleadingly confines the cause of the reversal of fortunes to some personal defect of character, whereas Aristotle's emphasis was rather upon the protagonist's action, which could be brought about by misjudgement, ignorance, or some other cause.

Oxford Dictionary of Literary Terms via Answers.com

Picture by Chris O'Connor, choipaint.com