Ethereum's gas fees have been at historically low levels since 2021. If this trend continues, it is possible for fees to reach January 2020 levels before the Ethereum merger. The main reasons for the significant drop in gas prices are:

1. Merger: Ethereum moved from Proof of Work (PoW) to Proof of Stake (PoS) system. This change, called 'The Merge', reduced transaction costs by streamlining network transactions.

2. Layer 2 Scaling: Since 2020, Ethereum has been offering various Layer 2 scaling solutions. Technologies like rollups and zk-SNARKs process transactions off the main chain, greatly relieving congestion on the main network and reducing transaction fees.

3. Decreasing Crypto Activity: The current decline in the cryptocurrency market and the decrease in transaction volume has also led to a decrease in gas fees.

From the current perspective, the third reason seems the most logical. It should also be noted that Ethereum's price shows a correlation with gas fees.