I can't believe some people are still thinking that Proof of Stake is the future, just because it spends less energy than Proof of Work, and it fits the green narrative propaganda.
I think this is what is behind the recent push to get bitcoin to convert to PoS. There is not a technical rational behind wanting to switch. There is a desire to implement the green new deal.
If they really cared about the environment, they (Ethereum guys etc) should build mining plants that run on renewables or maybe even develop something that ordinary people can buy and run their miners off-grid. Or something else entirely; what I'm trying to say is that there are much better ways to work on a PoW cryptocurrency to make it impact climate less.
To me, this just seems like a cash grab. The founders know exactly that they have a large amount of coins, while probably not running a single miner. With their greed increasing, they want more coins, so now they're trying to convince people to sell their mining rigs and pump more money into founders' pockets by acquiring large amounts of coin and 'staking' it.
Don't you choose a pool to stake?
No.
In ETH you do, if you don't have enough coin to stake by yourself (which many don't, I suspect).
Two: Not avoiding , but ignoring since in the earlier post I showed the majority of coins are PoS based. (Which means their developers share none of your concerns.)
To be honest; it's great for Bitcoin that when ETH switches to PoS, it will be the only remaining, relevant PoW coin. It will have no competition at all at that point.
The move to switch ETH to PoS is kind of a way to admit they lost, that a 'flippening' that they so so wished for for years, is not going to happen and that they will just compete with the lot of PoS coins since they're easier rivals.
No matter what happens with PoS, a world wide ban of PoW mining before 2030 is very probable, and that is a very real danger not imagined conjecture.
You're very worried about governments, aren't ya? This, my friends, is PoS mindset. PoW people don't care about 'probable' 'worldwide' 'bans'. Yes, I put everything in quotes since you and I know it will not happen. Besides the fact that there will always be countries not banning it; the power of decentralization is that governments simply can't know if you're running a miner in your basement.
While they can ban large mining plants, that will be great for Bitcoin, since the gear will be sold to ordinary people at low prices (demand < supply) and decentralization of hash power will reach all time highs!
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In PoW, there's a significant percentage of uncertainty. For example, you can't know for sure what will be your earnings in the future. You don't know if it's in favor of you to sell the ASICs or to keep them for yourself. On the other hand, in PoS, you know exactly the coins that suit you and you're not going to sell them unless one appears who's willing to pay you at least your future earnings.
Essentially, and that's a point I don't hear often, PoS coins are 'money printing machines'. You put in a certain amount and you're guaranteed to get out a larger amount.
As always, when someone proposes a money printing machine, you should be cautious. Especially asking: 'if you have a money printing machine, why are you selling it to me and not using it yourself?'.
In PoS, that's exactly what happens though. Sure, the developers allow you to print money as well (limited though; certain minimum of stake etc), but due to them holding the majority, they basically have the largest amount of 'money printers' out of the box. Because why wouldn't they.
Vitalik, summing up that there's sacrifice in security:
Because of all the arguments above, we can safely conclude that this threat of an attacker building up a fork from arbitrarily long range is unfortunately fundamental, and in all non-degenerate implementations the issue is fatal to a proof of stake algorithm’s success in the proof of work security model. However, we can get around this fundamental barrier with a slight, but nevertheless fundamental, change in the security model.
This is hilarious and simultaneously the biggest red flag I've ever seen for anyone investing in cryptocurrencies. If your new system doesn't meet the security requirements,
you do not change the security requirements! What is wrong with people?
A very large number of "VM" miners but not unlimited - this kind of proof is actually designed to push people to develop efficient VM and container images just for sleeping - but like ASICs there's probably a performance ceiling to how many you can run at a time. In fact it could be the long-term heir to ACISs, since it will cause CPU cores and threads to be hoarded instead of GPUs, FPGAs, and energy-eating ASIC miners, which are rendered useless for a proof of time or proof of idle model.
That's an interesting idea; however, ASICs also already push for efficiency for obvious reasons. If the algorithm works, you will get people (companies) building specialized computers with the bare minimum required computing power to run a shitton of VMs, which again run extremely stripped-down and minimal OSes which will do nothing else than running your mining program; since they consume so little electricity, people will just fill warehouses with them, and... well, energy consumption will add up and you kind of get to the same point you're at now.
I spent a bit of time looking into Chia mining (proof of space and time) and while the cryptographic idea is that 'computation is free', in reality it's not. In practice, Chia mining rigs are computing new shares all the time on tons of threads and cores, which eats a lot of energy.