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It's too far in the future, it's a completely new system (smart contracts), the speed of consumer/business adoption can be fast or slow, many altcoins are trying to get a piece of the 'pie'. It will go higher for sure, but there are just to many uncertain factors now to make a calculated prediction.

2020 - if this is too far you can consider a smaller timeframe. If so , what should this be in your opinion.