> Hey look I would like to send you the rights to my crate of wine.
You truly believe this can't be done without blockchain?
> You're the 1000th customer to my site.
You truly believe you can't track customers without blockchain?
> Or maybe you want to trade me for that in-game weapon.
You truly believe it's impossible to implement in-game trading without blockchain?
> Of course I could just transfer directly to your Ethereum wallet.
The only thing you could transfer is some meaningless numbers. What makes them meaningful is some central, trusted authority that will accept these numbers as proof of something. But then, since you depend on that authority to verify this... you don't need blockchain.
You truly believe this can't be done without blockchain?
> You're the 1000th customer to my site.
You truly believe you can't track customers without blockchain?
> Or maybe you want to trade me for that in-game weapon.
You truly believe it's impossible to implement in-game trading without blockchain?
> Of course I could just transfer directly to your Ethereum wallet.
The only thing you could transfer is some meaningless numbers. What makes them meaningful is some central, trusted authority that will accept these numbers as proof of something. But then, since you depend on that authority to verify this... you don't need blockchain.