3 ms·
> In order to change the Database, you have to go back > and do the "work" which becomes practically impossible after approx. 10 blocks. I think if some entity
by naveen99 9y ago
> In order to change the Database, you have to go back > and do the "work" which becomes practically impossible after approx. 10 blocks.
I think if some entity devoted 1000x the current mining power, they would catch up in less than a year. Historical hash rates were negligible.
- AgentME 9y agoThey could also profit extremely by legitimately mining now. Even if you assume they had magnitudes better and cheaper hashing technology, the opportunity cost to them of such an attack would be massive.
- michaeltoth 9y ago1000x the current mining power is 10% of global energy consumption. So they'd be spending 10% of global energy consumption for a year. This is infeasible unless done by a consortium of world governments, and to what end?