Because the stakeholders become the new central bank, with all the same motivations and conflicts of interest. You end up with a “staked class” and an “unstaked class”.
This is a contributing factor to why ethereum can be rolled back: because the stakeholders didn’t like it.
Bitcoin essentially has the same thing though — it’s just that the “staked class” is those who have built power-devouring ASIC facilities to compute lots of hashes. Get enough of them together, and you can roll back transactions via a Sybil attack, just as you can with organized action by stakeholders in a proof-of-stake cryptocurrency.
What’s the reason? Using more electricity than whole nations just to move some money around hardly seems worth the cost.
Because the stakeholders become the new central bank, with all the same motivations and conflicts of interest. You end up with a “staked class” and an “unstaked class”.
This is a contributing factor to why ethereum can be rolled back: because the stakeholders didn’t like it.
Bitcoin essentially has the same thing though — it’s just that the “staked class” is those who have built power-devouring ASIC facilities to compute lots of hashes. Get enough of them together, and you can roll back transactions via a Sybil attack, just as you can with organized action by stakeholders in a proof-of-stake cryptocurrency.