We've discovered something truly unacceptable has happened as a result of Professor Parallax's brief visit to Ethiopia in 850 BCE. The discovery of coffee has been set back by centuries, espresso martinis have never been invented, and brunch is in serious danger of becoming a very lacklustre experience indeed.

Our research has shown that the discovery of coffee hinges on one particular goatherd observing the effect on one particular goat after it eats a particular cluster of caffeinated berries. And the Professor's unfortunate sneeze spooked that very goat — meaning none of this has happened.

Can you use this temporal simulator to put things back on track and restore brunch?!