it would be better to accumulate Bitcoin and save it than buy and save without accumulating Bitcoin.  It is the accumulation that will make you maximize the benefits of Bitcoin price increase, The best thing about bitcoin is that even if you can't buy it then also you always have an choice of earning it in different ways so try to earn it to maximum possible extent and hold it

No! being a good and professional traders were not doing trade just guessing only, that's not the true meaning of a trader, instead we are doing trade base on the motion value of the coins and market of the coins if it is going to increase or not.

It depends how the condition of the economy or the need to be desired by everyone. If something big happened on bitcoin history, maybe it might happen and i hope it so. My predict is 5-15% people on the earth will own bitcoin on that year.