In which Penelope learns about the predictability of cause and effect.

↓ Transcript
Panel 1:
(Penny and Johnny stand near the power switch for the Cray.)
Penny: Finally ready to power up the Cray! I wired all the pcs on our network to serve as distributed co-processors. Over 800 terabytes! And that’s video RAM alone!

Panel 2:
Penny: When I flip this switch, I will have the fastest game server in human history! Ready?

Panel 3:
(Penny throws the switch, plunging the room into darkness.)
SFX: Click – Phooom – POP!
Penny: Oh, bugger.

Panel 4:
(A new commentator on a TV screen reads the news.)
News Anchor: Authorities are still investigating the cause of severe power outages all along the eastern seaboard today…