“The signal goes on, and he shows up. That's the way it's been. That's the way it will be.” Whenever Gotham faces an existential threat, the Bat-Signal lights up the night sky. In the DC Comics universe, Batman always shows up to save the day when he’s called upon.
Bitcoiners in Germany employed a similar tactic this week, emblazoning the preeminent cryptocurrency’s logo with a message to ‘study Bitcoin’ on the side of the European Central Bank building in Frankfurt. The images were shared widely across social media, with notable Bitcoin (BTC) proponents and various company profiles lauding the display.