I understand you are some die-hard btc fanboy.
That's ok.
But you reply is some bullshit.
it isn't, it can't be secure enough, it's impossible, because everything boils down to energy at the end of the day.
Steem is POS and therefore no: it doesn't boil down to energy, because it' s not POW.
you misunderstood, i said that is the problem that it's not energy based, because ultimately, everything is based on energy. all permissionless-consensus-critical crypto-systems that do not understand this only boil down to an inelegant or obscure form of proof-of-work at the end of the day again. "nothing is cheaper than proof-of-work": http://www.truthcoin.info/blog/pow-cheapest/
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