Bit o' Background here: we got shot off into space by the Vogons. Apparently they didn't like our analysis of their poetry too much. We were literally about to die, but this thing saved us! Thank God, but I honestly have no clue what is going on anymore.
This is Deep Thought. Apparently, a long time ago, this computer designed and built Earth to find out the essential question of life, the universe, and everything. Because the answer it gave (42) wasn't acceptable. Rubbish.