What is the difference between RSP and goal-based investing? Could you explain it to me in layman terms, please?

Regular savings plans is a general description of how one regularly invests a set percentage of savings at a determined frequency, eg. monthly, quarterly, annually.

Goals-based investing is an objective (the “goal”) that one is looking to achieve, typically looking at a longer-term horizon and seeing what they would like to achieve by then, and working backwards to then set a plan on how best to achieve that goal via the amount that needs to be saved and invested today, and at what frequency, and what type of portfolio allocations and risk involved. Goals-based investing could involve a regular-savings plan to meet that investment goal.