(Selfish mining in the sense that people are working on chains in private.)
Taking deposits in advance wouldn't address the "issue" either because they
could still work on the chains in private. The deposits have nothing
to do with that, they just prevent the NaS issue.
To me its not really a "problem" per se, but the implication is that
there's no free ride with proof of stake, at least as far as I can see.
People will still expend energy to come up with the
best solutions and the energy expenditure
won't go down.
Taking deposits in advance wouldn't address the "issue" either because they
could still work on the chains in private. The deposits have nothing
to do with that, they just prevent the NaS issue.
To me its not really a "problem" per se, but the implication is that
there's no free ride with proof of stake, at least as far as I can see.
People will still expend energy to come up with the
best solutions and the energy expenditure
won't go down.
Perhaps we are talking past each other but how do TaPoS/deposit miners expend the same or more energy than PoW miners under the same attack?
With Vitalik's proposal their isn't an exponentially increasing dynamic difficulty using more physical resources but only a increasing difficulty either penalizing the miners or taking more deposits, all of which use practically no energy.
