If everyone know when lowest and highest price. I think they are not here.
Are you implying that there are people that know when the market bottoms and when the market reaches the highest price 
. No one in the world is able to predict those things as it is an open market and no one is able to identity those, but you can have an assumption what might happen and if your hunch is right then you will be able to make some money.Agree. Such things cannot be predicted. So waiting is not so easy sometimes. Cryptocurrency is risky and unpredictable and not everyone has enough patience to make only right decisions.