> As such invalid blocks need to be mined anyway, only those willing to disregard block reward of 12.5BTC ($80,000) could actually do any real damage. > While

> As such invalid blocks need to be mined anyway, only those willing to disregard block reward of 12.5BTC ($80,000) could actually do any real damage. > While this certainly seems unlikely (barring any digital Tyler Durden-types wanting to destroy something beautiful), it does raise eyebrows. The great defence of Bitcoin is that it’s far too decentralized to be brought down by any single entity. Generic turmoil of the platform could panic selling. $80K to cause mass disruption could pay off considerably for someone shorting either bitcoin or an altcoin.