Blockchain-based systems are not what they say they are
> In June 2016, attackers exploited a vulnerability to steal 3.6 million ETH (then about $50 million) of the project’s 11.5 million ETH (about $160 million).People love to tout this example, I did too, until that realized that one a one off event. There are regularly significantly more larger thefts of crypto currencies these days[1] and nobody is even willing to discuss a hard fork. I now chalk this up as growing mistakes which every project makes in early stages. I'm still not into this whole idea of crypto currencies, but don't think we can use this point fairly any more.[1] https://rekt.news/leaderboard/