[itsnotvalid]

Considering that many of the coins are simply generated with electrify calculating hashes (proof for work done) out of nowhere, and a portion of it being generated by hijacking computers and many wallets getting stolen and became unrecoverable, there are still rooms for improvement (which Bitcoin itself couldn't solve unfortunately.) And there is no near instant payment which makes it quite hard for micropayments (sorry haven't followed much lately, does that getting improved?)