>> This sounds like an anti-feature to me. Especially since it'd be foolish for a service to only support authentication via a blockchain. Imagine telling my grandmother that she needed to buy some btc in order to sign up for the service that hosted my wedding photos.
This is different because your grandma would have to buy the tokens once and signup once and she will have access not only to the 'wedding photo service' but a large number of other services. It's more like paying a small amount of money to get access to an ecosystem of services. Like how people pay money to buy an iPhone and this gives them access to the Apple App Store and all the apps therein.
There will also be network effects associated with the blockchain price going up with adoption. People who signed up early to the right blockchains will have priority access to certain software ecosystems and exclusive services which are only accessible to the richest among them (for example).
> People who signed up early to the right blockchains will have priority access to certain software ecosystems and exclusive services which are only accessible to the richest among them (for example).
This seems even more like an anti-feature TBH. Imagine not being allowed to use the future equivalent of basic services because you were not "early enough". Sorry grandma, no wedding photos for you because you didn't buy these specific three coins out of the thousands started every month.
> People who signed up early to the right blockchains will have priority access to certain software ecosystems and exclusive services which are only accessible to the richest among them (for example).
I cannot possibly imagine a world where services will choose to only permit authentication via some expensive blockchain such that they deny themselves access to markets outside of the global rich.
And telling my grandma "don't worry, the coins you don't understand will go up in price" is not going to help.
This is the core question: why is signature-based authentication using public keys associated with BTC wallets superior to signature-based authentication using public keys not associated with BTC wallets? As far as I can tell, the only benefit here is that now my identity on my photo sharing service can be linked to my identity on my wine rating service. Why do I want that?
The benefit is that many third-party services and many users don't want to have to trust a centralized auth provider. The blockchain provides redundancy and security guarantees which don't require trusting company employees. Not to mention the financial incentives which are associated with being an early adopter of a blockchain project and the network effects which come from that.
I'm convinced that decentralized communities will eventually corrupt and destroy all centralized services and agencies by manipulating their employees and members... Because they can. People will always find a way to create new problems to make themselves necessary. In these political games, decentralized anonymous communities have the upper hand. Unlike centralized projects, you can't corrupt decentralized projects. What can be corrupted, will be corrupted.
To understand why it's the future, you need to look at the big picture. You're assuming that centralized auth providers are secure and trustworthy. This is not going to be true in the future. Trust in institutions and organizations has been eroding and will continue to erode.
OK let’s try again. What precisely is the difference between signature based auth that uses a key pair associated with a wallet and a key pair that the user submits the public key for when they sign up? Why would the latter be vulnerable to additional insider threats?
“Services will make more money because blockchains are trendy” isn’t a meaningful difference.
This is different because your grandma would have to buy the tokens once and signup once and she will have access not only to the 'wedding photo service' but a large number of other services. It's more like paying a small amount of money to get access to an ecosystem of services. Like how people pay money to buy an iPhone and this gives them access to the Apple App Store and all the apps therein.
There will also be network effects associated with the blockchain price going up with adoption. People who signed up early to the right blockchains will have priority access to certain software ecosystems and exclusive services which are only accessible to the richest among them (for example).