I don't understand why you are so bothered about these tweets really but this is probably what he is referring to;

https://medium.com/@danieltreccia/bitcoin-zero-finding-the-orphan-of-apollo-giving-it-a-future-4ae9096f16cd

Then we talked about 21e8 and how tokens like Mainframe exist only after funding from the 0x00 “Izerocoin” hash public key. This hash public key is also seen before BTC block 0, ETC block 0, as well as at the base of merge mining — where I0Coin is the mainchain and its auxpow DVC sends coins to the BTC ledger which we know are unspent IOU’s to be claimed by I0Coin using op_codes via Zerocoin protocol. The Zerocoin protocol mentions the intentional leaving out of turing completeness in Bitcoin script. Once enabled, these op_codes will send value from the BTC ledger back to I0Coin via OP_Return, which comes with every I0Coin block reward.