@martins-hacks : All this is true! But we all need to have a practical approach. What's your target for December 2018 ? (I will haunt you on 31st Dec 2018 😛)
However, here is what others have predicted, do check and support:
https://steemit.com/mgsc/@tapan676/discussion-what-s-your-bitcoin-price-prediction-for-2018