By the most logical thinking:
There's strong evidence that the late 2017 spike in Bitcoin value was due to manipulation via Tether.
IF that is so, then that entire episode actually means nothing, and...
Bitcoin etc values will decay back to their historical levels prior to pump & dump.
This will be slow because interim buyers won't want to take the losses.
Look at BC charts for the past 6 months. It's very easy to imagine the average value continuing to decay down to $400 in 12-18 months. And that's what makes sense - at least, more sense than anything else.
A few brilliant traders will make money getting in and out during the decline, but all the other players here are just rearranging deck chairs on the Titanic. The only "charting" you need is the big picture here.
Unfortunately, there seems to be no reliable way to buy a put on BC for that time-frame, or I would.
i believe bitcoin have a very bright future because bitcoin is very useful currency in market and its playing avery big role in any country economy.
Among the factors driving Bitcoin prices up, there is an element of recognition from a stronger economy. Hence, the opposite is true, ie, the price of Bitcoin falls if a stronger economy oppose and prohibit its use.
Manipulation is a big problem for the growth of bitcoin because those who understand market manipulation will never invest their money in bitcoin because they will not earn money and will waste their time and money. It is better not to invest in bitcoin. I am optimistic about the future of bitcoin and I will make huge profits due to increase in the price.