I think BTC price is manipulated. Al the order books are fake and you need a huge amount of value to move all the important exchanges at the same time. One you did that, you get reactive effect but the timing is important!
i don't think so, it is that they are using bot all over the place, in every exchange, you can use your too, human trading is very rare nowadays
manipulation is there but to a much less extent than before
But more people are not believe in manipulation although its true, because they not thinking about how they are going to trade with high profit, they just only need is to trade with a profit not big not small its only enough.