Please I will like you to elaborate more on this, because I don't understand how collecting bitcoin using the DCA method weekly will reduce someone's additional expenses.  I would like to know those additional expenses you are referring to. Because to the best of my knowledge, buying bitcoin is also an expenditure which one has budgeted from his discretionary income. So what are those additional expenses that DCA will reduce for the investor?

Note: You know I am a newbie and I'm trying to learn as fast as I can.