The University sends your medical degree to someone with the same surname as you by mistake and you get their basket weaving degree. They refuse to return it.
What do you do? You go to the university, and they check their CENTRALISED MASTER RECORD, notice the mistake, and fix it.
So. #1: Why do you need blockchain at all? #2: How can you have your blockchain system WITHOUT also having a centralised database somewhere?
The answer, as always with blockchain, is "So I can sell you a token." Always.
What NFTs guarantee is that the degree the school gave me is still mine. Without NFTs, they could not only revoke my degree, but also delete it from their database and leave me with no proof I graduated from there whatsoever, since I never really owned the degree as property. But with NFTs, no matter what they change or delete in their centralized database, my degree still exists as my property in my decentralized NFT wallet, and the school can't delete or take that back. Which is how property should work! In the real world, if my alma mater were to revoke my degree, they'd update their databases, but they wouldn't also come to my house, find my paper degree, and rip it up.
Now this is obviously a contrived example, because the entire point of a degree is to say, "Look! <AuthorityX> thinks highly of me!" So of course if the authority changes their mind about that, then your degree is worthless whether you still own it or not.
In a less contrived example, there might be property you own that's valuable regardless of the original owner's opinion of you or any records they keep in their database. For example, if you get a magical sword in World of WarCraft in NFT form, you now own that, and you can use it in other games that choose to recognize and represent that NFT. Even if you get in a fight with Blizzard's CEO, and he orders his minions to delete your account from their servers, you'll still have the NFT, and other games will still respect it.
Whereas in a world without NFTs, the only way for other games to even know you had the sword would be to query Blizzard's servers, so you would be fucked in this scenario, because Blizzard would delete all records, because they owned the records, not you.
So, on to video games. You think it would work that way huh? Your sword would still be worth something if Blizzard revoked it because you "own" it? You are making the mistake of thinking that whatever game you want to use the sword in wouldn't check with Blizzard to find out if you are a douchebag who has been banned or not, before they allowed you to use the sword for something in their game. They'd check, see that Blizzard has no record of it on their database, then decide that you'd either been banned or had stolen it, then block you.
Btw: Even this won't happen. Read what an actual game developer says about it. https://docseuss.medium.com/look-what-you-made-me-do-a-lot-o...
2. Other "real world" use cases abound, especially with intangibles. Degrees, certifications, licenses, tickets, contracts and invoices, perks, discounts, coupons, identifications, you name it. And these are just physical goods becoming NFTs, to say nothing of digital goods. Turning any good into an NFT adds it to a blockchain, which (a) enables ownership, (b) makes it part of a publicly accessible API that unlocks infinite creativity, (c) plugs it into a booming and a liquid market where owners can buy, sell, and trade their goods, and (d) guarantees its existence and accessibility for the long term.
3. I completely disagree with you that most games would check to see if Blizzard has marked you as a douchebag. Why would GameX care if a player broke some arbitrary rule that Blizzard has? They wouldn't.
4. The person who wrote that post barely even understands what an NFT is, and gets a whole bunch wrong. For example, they write that the concept of ownership of NFTs is "unenforceable," as if the blockchain needs some sort of enforcement. I'm not sure you want to get your predictions from somebody who doesn't understand the technology. There are plenty of smarter game developers working on NFT companies and writing much more intelligent posts.
2: All your examples can be done easily without blockchain. Perks, discounts, coupons, tickets etc. We already do all of this just fine.
3: "They wouldn't". Lol. Why not? It takes them zero effort, it would be an automated system, and guess what, it totally destroys your whole assertation. Doesn't it? GameX would check with Blizzard for reason that Blizzard would also check with GameX.
4: Ownership with NFTs is entirely unenforceable. Contrary to your point, you are the one who actually doesn't understand NFTs, nor the real world it seems. You seem to want to turn everything into a bearer bond, when in fact nothing in real life will ever work that way.
ID's? Ok, you have some ID token that "proves" you are 21. Does that mean you are 21? No, the only thing it proves is that you have the token. In any consequential case, the entity wanting to verify your age would have to check back with a central authority to determine if it's valid or not, thereby invalidating the need for the blockchain.
Tickets? You somehow think any ticketing agency on earth will hard over all control to what happens to the tickets they have sold?
Coupons? You've seen all the legalese and prohibitions written on coupons I take it. There are more rules about what you can and can't do with a 10% Off Pizza Hut token than many contracts. Yet you think they'll start putting them on the blockchain?
You live in fantasy-land mate. No game company is going to devote a whole bunch of effort and programming time into allowing someone with assets from a competitor to use them in their game.
2. None of these things have digital ownership enabled, none are part of a global publicly accessible API that others can connect to, none are part of a market where they can be bought/sold/traded. So all would be better with NFTs.
3. You haven't given a single reason why GameX would care to ban PlayerA just because Blizzard banned them. We see the opposite online all the time: people getting kicked off of one social network while be allowed to operate on others.
4. All of your examples here once again misunderstand how NFTs and the blockchain work, just like with #1 above. With IDs, the central authority that granted you the "21 years old" NFT would be listed as its origin on the blockchain, which obviates the need to check with them.
Anyway, at this point discussion is futile. You don't understand the technical details of how the blockchain works, and the rest of your points are just negative predictions of the future in the vein of, "This is how things work today, therefore this is how things must always work." It's very similar to people in the 90s claiming that no serious company would ever put anything on the internet.
Come back to these comments in a year or two.
1. You can get around this trivially, by simply either (1) looking at transactions originating from the node that distributes degrees, or (2) looking at the degree directly from a person's wallet. You don't need to use the blockchain for searching. It's not going to replace databases. You can have databases, too. But an NFT degree originating from a school's degree-distributing node is just as good as proof and doesn't require some additional step of contacting the school to find out if it's legit.
2. You've still said zero about the utility of a market where these things can be bought/sold/traded, or the API being publicly accessible, etc.
3. No company was putting their assets on the internet before the adoption of the web started compelling them to.
4. See #3. I'm trying to see your point here, but so far it amounts to, "People are doing X today, so they will always do X," which ignores the fact that technology takes a while to adopt. NFTs are new, and their utility is based on network effects, which means they'll become more useful with more adoption. Of course Apple isn't jumping in to use them right now. That says nothing about the future. That'd be like going back to 2011 and saying, "Nobody is using Zoom yet when they could be." Okay sure, but what does that say about the future? Little to nothing.
Again, of course it's possible that this won't catch on. Likely even. But the reasons you're listing don't seem like deterrents.
Centralized control will always be faster and more efficient and less fragile. Errors can be fixed, fraud can be blocked. Fans of blockchain would be a lot less certain that the tech had value if they were unable to shill a token.
Why isn't Apple jumping in to use them? They could set up their own blockchain right? Well, because the central issuing authority doesn't want to lose control of them. Why aren't ticket resales on the blockchain? Because the central issuing authority doesn't want to lose control of them. And that's what you will run into, every time.
All the things you claim that will be able to be done with the blockchain can already be done. So yeah, I guess we'll wait and see.
People get shit stolen in the real world, and in the current implementation of the internet all the time. What happens when your Google account gets fished and someone steals tens of millions of dollars from your company? Do we shut down the internet and call it a day? No, not really. It has no effect on adoption.
The fact is that when you invent the ship, you invent the shipwreck. So it goes with all new technologies, and so it always has. Have we ever simply said, "Welp, there are costs to go along with the benefits of this new tech. Let's just give up here!" Not to my recollection. We simply make the ships more crash-resistant.
The problems with new tech are almost always obvious early on, but the solutions require creativity and frequently result in hugely successful businesses.
Consider early criticisms[0] of the internet from 1995:
> "Every voice can be heard cheaply and instantly. The result? Every voice is heard. The cacophany more closely resembles citizens band radio, complete with handles, harrasment, and anonymous threats. When most everyone shouts, few listen." True enough. There's a cacophony. So what? The internet survives. Algorithms rank posts and tweets and surface the best insights.
> "How about electronic publishing? Try reading a book on disc. At best, it's an unpleasant chore: the myopic glow of a clunky computer replaces the friendly pages of a book. And you can't tote that laptop to the beach." True enough. So what? We got Kindles, and smart phones, and higher-res screens, and people bring laptops to cafes instead of beaches.
> "…the Internet is one big ocean of unedited data, without any pretense of completeness. Lacking editors, reviewers or critics, the Internet has become a wasteland of unfiltered data. You don't know what to ignore and what's worth reading. Logged onto the World Wide Web, I hunt for the date of the Battle of Trafalgar. Hundreds of files show up, and it takes 15 minutes to unravel them…" True enough. So what? A few years later this problem was largely solved by Google, which is now worth a trillion dollars.
> "…who'd prefer cybersex to the real thing?"* Hundreds of millions of people are addicted to porn. Not saying it's a great result, but the fact remains that problems don't stop adoption.
And do you remember how much credit card fraud there was in 90s e-commerce, when security was trash and almost nobody was used to regularly checking their digital bank statements, so it would take weeks or months for people to even notice? Hell, there's still a lot of fraud today. E-commerce still reigns supreme.
Sure, people will get their NFT good stolen. It will happen frequently. It already has happened many times. This will not hurt NFT adoption. It will simply spur innovation in security and defense, which it already has if you actually look into early solutions (e.g. custodians, insurance).
At best, you're simply pointing out problems that people will innovate to solve.
[0] https://www.newsweek.com/clifford-stoll-why-web-wont-be-nirv...