In recent days, the biggest topic in the Bitcoin ecosystem is that the Bitcoin Core developers have decided to remove both the length and quantity limits on OP_RETURN in the next version. This decision could greatly impact the Bitcoin ecosystem. Previously, to attach larger data on the Bitcoin chain, one could only use the Ordinals method, which required two transactions (submit-reveal), generating a significant amount of UTXO and occupying funds (546 satoshis). In contrast, OP_RETURN is an unspendable output that does not occupy UTXO or any Bitcoin funds. After the restrictions are lifted, the following concentrated changes and positive situations may occur:

1. This is beneficial for Runes, as Runes are implemented based on OP_RETURN. With the removal of restrictions, future upgrades may expand more functionalities and applications.

2. This is beneficial for BRC20. After the restrictions are lifted, BRC20 will no longer need to rely on Ordinals to engrave JSON for transactions; it can be completed directly in OP_RETURN (the embarrassing capitalization of 'ordi' that is not in Ordinals).

3. New coin issuance protocols and NFT protocols may emerge. Once the quantity and length limits on OP_RETURN are lifted, Ordinals will instantly become an 'outdated' protocol. Using OP_RETURN to issue NFTs will no longer allow anyone to criticize it for 'creating garbage'.