Quote from: 42246709215 on July 25, 2014, 02:31:57 PM

Quote from: lynn_402 on July 25, 2014, 01:36:55 PM

Quote from: 42246709215 on July 25, 2014, 01:08:34 PM

Quote from: lynn_402 on July 25, 2014, 01:04:01 PM

Since this will be in more than 50 years, many events can happen to make Bitcoin secure even though there are no block rewards to incencitive miners.

Bitcoin could become widespread enough for mining to be sustainable with transaction feess, or perhaps in 40 years it will switch to PoS v.24 or something like this Wink

There are many other CryptoCurrencies that will finish coin generation soon.... How will they be able to work then if they are that vulnerable ?

All altcoins I know which have finished coin generation use PoS, so no mining is needed.

Is not needed means not possible anymore ?
Because if it´s possible a 51% attack would still be possible.

Actually no, it's impossible to mine a PoS coin.
Blocks are generated by coin-age consumption.