The 'difficulty bomb' is a code ingrained in the Ethereum protocol since 2015. It is set to execute every time a specific number of blocks have been mined and added to the blockchain. As the name suggests, it makes the mining activity on the existing proof-of-work (PoW) blockchain significantly harder. Why is the difficulty bomb important and why has it been delayed? Read here -
Ethereum's migration from the proof-of-work (PoW) consensus mechanism to the proof-of-stake (PoS) consensus mechanism is one of the most awaited events in the cryptosphere. The transition will reduce energy consumption and gas fees while increasing the blockchain's processing efficiency.
Ethereum's difficulty bomb is an essential part of this transition to PoS. However, the dev's recent decision to delay the difficulty bomb indicates that we might have to wait a little longer for the switch to happen.
Why is that so? Well, to answer that, we must first understand what a difficulty bomb is and why it is essential to Ethereum's switch to PoS.