I think Google does make money via 9a based on who pays for it. Consumers don't pay for the information. Advertisers do pay for matching their ads to likely buyers.
Key management is how many comply with GDPR today. They encrypt the PII and associate it with the user. Then, when someone requests their info to be "deleted", they zero out the encryption key.
This should continue to work as long as you use systems that do not fall to pieces under quantum attacks.
AES is considered "resistant" in that quantum does an effective square-rooting of the brute forcing effort (or if you prefer, halving of the binary key length). So, do not use anything under AES 256.
Asymmetric algorithms fall apart though, which is why NIST has had a multi-year effort to select new standardized asymmetric algorithms.
There are select bits of info we should protect, but can't. If you're in the US, your SSN is one of those.
It never ceases to make me chuckle that it says that it's not a form of ID on front, and yet everyone considers it a form of ID. Even state governments. It's usually listed under one of the documents they accept to prove ID.
> If you are projecting a receding economy and/or decreased demand for the land you are buying, then it does not make sense to pay as much as you can afford...
I think this is the above commenter's concern; homebuyers are not adequately pricing the risk of rising interest rates. If interest rates go up, demand falls and you're left in a highly leveraged position that amplifies your losses. Monthly mortgage payments don't make the leverage apparent. Sticker price does.
In order for central banks to mitigate future recessions, they need be able to make rates go down too, not just not increase them. And when rates increasingly approach zero, there won’t be much they can do, except buy the assets - which they have done and are not supposed to.
Reification is usually a fallacy when we take the abstraction too far. The canonical example being "the map is not the territory" where someone confuses every mark on a map with actual features of the terrain.
One could argue that abstractions "actually exist literally" without being physical. Gravitational fields don't exist physically but do exist and they're a valid abstraction that's useful to measure. Maybe happiness is a phenomenon that could be useful too (though I would say to a lesser extent.)
A little tangential but... even things that we would say exist physically are not on closer inspection. Does a chair actually exist or is it a platonic ideal that we apply to a collection of atoms assembled to form four legs, seat and a back?
You are absolutely correct. Moreover, reifications can be useful or harmful - purely based on how they are being used. That's why maps are actually useful, except for several individuals that died in Australia and other places by trusting their navigators more than their own eyes and actual surroundings. I've been in situations where GPS malfunctioned and when I quickly realized it I understood that I should not follow the map.
It's actually way funnier than GOP presets to be. Flashloan must be paid back in the same transaction. Since whole thing happens in the same tx, it's atomic. So you can use smart-contract logic to determine if you are actually making a profit, and if you are not - revert!