Access is not automatically a spatial tensor factor

Laddha, Prabhu, Raju, and Shrivastava argue, under their asymptotically flat quantum-gravity assumptions, for information availability near early cuts of null infinity and discuss an entropy behavior unlike the usual Page curve NullInfinity. That is an external proposal, not a proof that the present finite proxy is an algebra at infinity. Removing an observable such as the Hamiltonian also requires defining a remaining observable algebra; arbitrary deletion need not leave an algebra closed under multiplication.