Will it hit 500$

Decred , Ethereum , zCash will replace BTC . Impossible BTC will back to $400++ because many country ban it for payment . As you can see BTC have many problem about ecosystem (PoW) now many digital currency use PoA or Hybridized from PoW and PoS like Decred and zCash (edollar) that give more simple and not need huge energy

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If you like investment , invest on stock is better than BTC