Any arguments like this are immediately nullified because we have real-world examples of blockchain doing astounding things which can't be done without it. E.g. cryptocurrencies such as Bitcoin.
Can you transfer value across the world without Bitcoin? Yes, you can use banks, you can use wire payments, you can stuff gold in your butt and hope it doesn't show up in Airport scanners.
Can you verify that goods have been delivered without blockchain? Yes, you can insert to write-only dbs, you can hope that everyone in the supply chain is honest, etc.
There being an alternative to blockchain for a task doesn't mean blockchain isn't highly suitable for that task.
These same anti-Cloud-hype arguments were spewed throughout the 2000s, yet look how the world has changed because of it.
Can you transfer value across the world without Bitcoin? Yes, you can use banks, you can use wire payments, you can stuff gold in your butt and hope it doesn't show up in Airport scanners.
Can you verify that goods have been delivered without blockchain? Yes, you can insert to write-only dbs, you can hope that everyone in the supply chain is honest, etc.
There being an alternative to blockchain for a task doesn't mean blockchain isn't highly suitable for that task.
These same anti-Cloud-hype arguments were spewed throughout the 2000s, yet look how the world has changed because of it.