Even though the excitement is huge right now for BTC going to 100k or even past it, i think this will not happen for a few reasons.
Aside from TA, if you've been in the previous cycles you know that whenever everyone thinks btc will reach certain target or go beyond, this price is never reached. Excitement is however needed, because it creates liquidity for whales to dump their BTC to retail investors who are chasing those last few % in BTC (while altcoins go nuts).
Now to the TA. If you extend fib. ext. levels over the previous bull run you get 4.236 extension level that takes us to roughly 75k. Also if you put 2011-2013 super cycle on the bottom of 2015 (the start of 2017 bull run) you see how we also get to that 75-85k target. Not only that but we also see similarities between 2017 and 2013 bull run where top and bottoms came in 2018. If those targets where respected in 2017, there is no reason why the final target would not be 75k this year. Maybe the final blow of top will get us to 85k but i hardly believe we go beyond that.
I want to also point out that even though BTC is at the very end of its cycle, it is where huge rotation of money goes into alts. Primarily to those that are still very below its previous ATH. (XRP, DASH, ZEC, EOS, BCH,...)
I am not a financial advisor so non of this should be taken as a financial advise, stay safe and be well.
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