Consider the following:
- only distributed groups of 32 anonymous nodes are needed for consensus, compared to every full node on a standard blockchain.
- both data and it hash can be stored on the network without any additional software, compared with only the hash generated by a supplementary application and separate data storage.
- transaction times are of negligible resource cost, compared with high resource cost.
- transactions are near instant due to small consensus pool, compared with delay (usually minutes) for full network consensus.
- sequence chains can be built from hashes of previous data being stored in subsequent data (along with time stamps etc), compared with having to compete for block space.
- anonymous transactions, due to atomic data transfer operations, compared with a public ledger with blockchains.
So, it seems safe net can do the following better than blockchains:
- Cryptocurrencies more like cash.
- immutable storage of event sequences.
- hashed storage of data to time stamp and protect against fraud/corruption of data.
There may be others and safe net can do far more beyond this sort of transactional behaviour.
In conclusion, I suspect safe net will make blockchains obsolete, as the core use cases can be handled more efficiently via safe net.