**[Adam Back Warns BIP-110 May Impact Bitcoin's Upgrade Capability]** On March 16, Bitcoin Improvement Proposal BIP-110 sparked controversy. Blockstream co-founder Adam Back urged the community to pay attention to the proposal's potential to hinder Bitcoin's future upgrade capability. BIP-110 aims to clean up "junk data" on-chain through a temporary soft fork, addressing data inflation caused by protocols like Ordinals. However, its design disables the OP_SUCCESS opcode in Tapscript, which is considered an important reserved mechanism for Bitcoin soft fork upgrades. Additionally, the proposal limits the Taproot control block size to 257 bytes, potentially affecting the development of Layer 2 technologies like BitVM that rely on extensive script execution.