Of course, I agree with you that DCA gives some better assurance that you will just spend in accordance with your cash inflows versus your expenses, so presumptively, if you are able to establish some level of steady cashflow, then you will continue to have money to buy each week or whatever might be the period in which you are applying your DCA buys.
Sorry for my immature question but with regards to lump sums, how does it really work. Does it mean buying in whole or huge investment even if not in whole ?
With regards to your question, lump sum investment or lump sum buy simply means using a huge sum of money to buy Bitcoin at once. For example let's say you have $20,000 and you use it to buy $20k worth of Bitcoin at once or at a stretch.