I was searching info on a crypto scam and saw that now reddit has jumped on the crypto bandwagon too? Everything must be on a blockchain for some reason
this post was submitted on 22 Jul 2023
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No, I went into a bit more detail in the next sentence. If we were to assume a billionaire with nigh-infinite wealth he would probably still have quite a challenge ahead of him if he wanted to manipulate the Ethereum blockchain.
For starters you can't simply go up to the existing stakers, hand them a big stack of cash, and tell them "your Ether is mine now." The Ether that is staked is not for sale. It can be put up for sale, if the staker desires, but given that it's currently staked and not on an exchange somewhere that means that the stakers don't currently want to sell it.
So Mr. Moneybags is going to have to buy Ether from external exchanges and put that up as a stake such that they will have 2/3 of the stake while accounting for the fact that he doesn't own the 20 million Ether that's already staked. So he's going to need about 40 million Ether (40/(40+20) = 2/3). At current market prices, 40 million Ether will cost $75.5 billion.
But there's yet another hurdle. There isn't actually 40 million Ether for sale on the exchanges right now, either. There's only 120 million Ether in existence, and much of that is bound up in various contracts (staking, stabletokens, layer-2 rollups, etc). So if he goes to the exchanges and just starts buying whatever is available the market is going to see that there's an insatiable demand for Ether. The price of Ether will rise. If it rises enough people will start prying their Ether out of wherever they've stashed it, because now they can cash in and make bank off of Mr. Moneybags who's making it rain over on the exchanges. It's going to cost way more than a mere $75 billion dollars. Elon Musk is currently worth $238 billion, I wouldn't be surprised if his entire net worth wouldn't be enough to accomplish this.
Let's say that Elon and Bezos and a bunch of others pool their money to do this. This is economic activity without historical precedent, a vast transfer of wealth from the pockets of the rich and powerful to... a whole bunch of random cryptocurrency holders around the planet. This will be very notable, I'm sure, and I suspect that there'll be major governments very curious about where all this money is going and why. They'll want their cut, or they'll reflexively go "don't understand this so better ban it", or assume it's a big money laundering thing, or something. Yet more obstacles to overcome. It's possible to overcome them but not easy on this scale.
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So we'll assume that's all magically resolved. A vast fortune has been spent and the Meddlers' Conglomerate now has 40 million Ether. Just need to stake it and the blockchain's theirs now! Except there's another problem; Ethereum's staking contract has a rate limit on how fast Ether can enter or exit it. This was built into the system to smooth out any sudden shifts like this. The rate is 57600 Ether per day, so it'll take 694 days to finish moving those 40 million Ether into the staking contract. Almost 2 years.
Alright, it's been 2 years and now the Meddler's Conglomerate has moved their vast fortune into the staking contract. The whole world has been watching with bated breath, because there's no way that you could do anything like this secretly - the blockchain is an open book. Maybe somehow they've managed to keep their real-world identity secret (though people are perhaps wondering about the coincidence that Elon Musk, Jeff Bezos, and a couple of others are now drawing welfare cheques) but the pattern of activity on the staking contract is in the clear so everyone knows which staking accounts belong to this giant whale of a staker. Let's see what they do!
So they're rejecting certain transactions relating to the Reddit community point rollup. Note that there are ways you can write a rollup contract that would prevent the base layer from having any say in what goes on inside it, but let's assume that Reddit wrote it stupid and they're able to have some sort of impact. The rest of Ethereum's userbase nods, saying "aha, I figured they were probably up to no good." At which point they roll out a User-Activated Soft Fork for Ethereum that locks those 40 million Ether. There is nothing that stakers can do to prevent a user-activated soft fork from going into effect provided basically all the users want it to go into effect. It's a nuclear option, but the Meddler's Conglomerate started the nuclear war first and this will finish it. The Meddler's Conglomerate now owns zero Ether. They are broke. They probably didn't even manage to disrupt the blockchain much in the process, aside from making a bunch of cryptocurrency speculators insanely wealthy.
This scenario, "what if someone with infinite money wants to do something nefarious?", has been war-gamed and planned for in excruciating detail for nigh on a decade now. Ethereum's built a lot of very robust mechanisms to prevent it. And whenever a token or rollup spins up that's "on the Ethereum blockchain" they inherit all of that security.
So yeah, for all Reddit's faults and all that people might pooh-pooh "cryptobros", this actually is one of the better ideas they've had in a long time. It's more secure and more open than running it on their own in-house private database.