You might have noticed the bat 🦇 and speaker 🔊 emoji floating around Twitter and wondered: what is this all about?

This is about a meme—ultra sound money—which began as a joke, but represents a monumental shift in Ethereum’s monetary policy. If bitcoin is sound money, ether will be ultra sound.

The supply of ETH has increased since the network launched in 2015. With EIP-1559 and the merge this trend should reverse: ETH supply will decrease.

This artwork combines the meme-spreading bat signal 🦇🔊 with the ETH diamond ⟠. It celebrates the activation of fee burn with EIP-1559 as well as the lighthearted yet powerful nature of memetic forces.