Dollar-cost averaging (DCA) is buying a fixed amount of Bitcoin at regular intervals — say $50 every week — regardless of the price. Some weeks you buy high, some low, and over time your average cost smooths out.
The appeal for beginners is that it removes the pressure of "timing the market," which almost nobody does well. You don't need a big lump sum or perfect timing — just consistency. Most exchanges let you automate it.
DCA cannot remove the risk of loss, and Bitcoin stays volatile, but it's a simple, disciplined way to build a position without trying to predict short-term moves. This is educational information, not financial advice.