Options which score just under, or just over, 50% are on – or close to – the borderline. They do not constitute a clear way forward. They lie in that grey area in the middle between definitely right and definitely wrong for you.

The rating you give a borderline option would not need to change much in order to tip it the other way. For example, an option you rated at 55% is only just positive – if you came back to it when you felt less optimistic about it, or knew a bit more about any risks involved, you might easily re-rate it at under 50%.

The bottom line is that borderline decisions are not safe. You cannot be completely confident that they are right for you. You could take them, but they carry a risk of not working out.


If you have no choice but to pursue a borderline decision, proceed with caution, keep an eye out for ways of improving on it or reducing the risks. Strengthen its positive aspects as you go along. But be prepared to changing track if you need to.

I would advise anybody looking at an option that falls between 45%-55% to do more work on it before proceeding. Anything which is only just right or only just wrong needs to be clarified before you either pursue it or reject it.

There are two ways to improve or clarify a borderline decision: adapt it or look for an alternative.