Nothing lasts forever. How long will your contribution to knowledge stand? How many years before there is something bigger, better, more considered or more helpfully stated?
On the one hand, you don’t need to account for everything that will or could happen in your field with respect to your research.
On the other, it could be helpful to think about what could happen next to help you share something of the significance you see and that you hope others will see in time.
Consider what your work could mean in the future and you can help yourself to consider what it means right now.