I do not know much about trading, so I have a question for the ones who knows.
It got my attention that for the last couple of days almost no one wants to buy BTC because its price is high, while there are so many people who want to sell and make profit (see the graph). My question or misconception pops at this point. As an extreme example, if everyone wants to sell and no one wants to buy in the market how is the price of BTC going up? Is checking the order book a bad/useless practice when trading?
BTC/USD - The order book graph from Bittrex at 8pm on Nov 27th, 2017