The more you assume your long-term projections and assumptions are just merely speculative and based on the data at hand, the more you’ll be able to deal with when these projections fail and assumptions prove to be untrue.

Unless you’re constantly monitoring the data and double checking that your assumptions are still true, to presume that these are still true is setting yourself up for disappointment.

We’ve seen how quickly the entire world can change, so it goes to say that everything is uncertain and that the basis of your assumptions might shift rapidly.

There’s nothing you can especially do about that, besides build as much contingency as you reasonably can, but knowing that uncertainty is going to be part of life will at least soften the blow if it does come to pass.