It just matters that it’s consistent. The transactions that are put into the blockchain just have to follow the rules of the blockchain and be the same for everyone who reads the blockchain. That’s all that “correctness” means as far as the blockchain is concerned.
Still useless for anything that depends on external data, since there can be no guarantee that what has been entered is correct. What’s the point of a consistent record of garbage?
But blockchain at its core is just a distributed database. One that has no central authority, can not be tampered with, cannot be altered, nor taken down if parametrized accordingly.
Which is completely useless if the data that goes into that blockchain isn’t guaranteed to be correct. And if there’s money in it you can bet your ass that someone will try to game the system.
You’re also glossing over the existing grid that needs money to be maintained while complaining that energy companies want money. Yes, there’s a general problem where society allowed (and partly encouraged) sociopaths to be unrestrained greedy assholes that needs some kind of solution, but not all companies are useless leeches, it’s “just” an all-pervading corruption that needs to be dealt with - and as long as that hasn’t happened, every idealistic solution faces the threat of being corrupted itself.
Monopoly? No? I guess that’s the less visible kind of violence that makes it acceptable.
Modern cheats for multiplayer games don’t modify local files (or attribute values in memory), since the server validates everything anyway. They’re about giving you information that’s available but not shown in the game (like see-through walls, or exact skill ranges), or manipulate input (dodge enemy damage, easy combos). Those cheat can run in kernel mode (or at least evade detection from user mode), so the anti-cheat needs kernel mode to be more effective.
Audiobooks have a simple workaround if you can find a version of the book in text format to download, just index that.
Calibre can create a full text index to search through everything (well, for files that actually contain the text, and it needs a lot of space).
“Free speech” just means “I want to spout garbage without pushback (like fact checking) or consequences.”
Since they don’t seem to care about it, start using “tweet” for every social media post to devalue them further.
We haven’t solved the “disposal” question of using fossil fuels, and those turned out (or were known along) to cause much bigger problems.
Also why they (Musk especially visibly amongst them) try to destabilize the EU - the possibly most effective consumer protection organization that messes with their bottom line.
edit: Just saw another example: https://www.politico.eu/article/zuckerberg-urges-trump-to-stop-eu-from-screwing-with-fining-us-tech-companies/