Most things don’t go as planned. The “go-live” date gets extended. The contract needs revisions. Your boss goes on vacation. Your ad was ill-timed with the market. Not to mention the countless curveballs life throws at you.
Given this proven truth, doesn’t it make sense to spend most of your time building flexibility into whatever you’re building?
Changing your mind is difficult, but it’s easier when you’ve calculated that into your plan. The best plans, then, are the flexible ones, the ones that have the need (and ability) to change built right in.