This was my thinking too and I even made a comment referencing an entrepreneur.  Thankfully, JJG explained convincingly, how this can be achieved. From that explanation, you can actually know your financial inflow within a certain period like a year, from that you can know what to set aside and plan your DCA accordingly.  You must not be earning fixed income monthly or weakly before you can perform DCA, even when your inflow is not regular, you can take average with a time period and as soon as you have any bulk funds, you can start off with the part that fits into the average you have worked out already and because it is exhausted,  you would have receieved another inflow base on your calculations.


This reminds me of the good old days when my parents were providing practically everything I needed. Imagine I knew about Bitcoin then, most of the monies I spent on things I can't even remember would have been properly preserved in Bitcoin.