Sure! I often start to make things which seem like a good idea at the time but after 1--8 weeks of A/B testing (or other verification methods) it turns out the

Sure! I often start to make things which seem like a good idea at the time but after 1--8 weeks of A/B testing (or other verification methods) it turns out the market was not what I thought and it would be a waste of time to pour more work into it. At that point I can either "stick to the 3 month plan" and do something which I know has at best no value, or... try something else.