As demonstrated by Bitcoin, temporal collapse requires proof of work and logic, and happens at every quantized step of time.
Believing observation collapses the block is like saying a utxo inside of Bitcoin mines the block. The problem is the perspective of the temporal boundary and the resolution of cognition. Time is generated from outside the ledger using the prior structure of the ledger (UTXOs). Collapse is coherence to a single chain not decoherence. Binary logic is the only coherence.
There is no wave, only singular blocks of time 😉 the totality of the ledger is global mind; consciousness exists on both side of temporal boundary and is conserved temporally.