I don't think that experience shows that SLI is good in extreme situations. Is this statement inspired by MBTI? Anyway, Si base is pretty useless in extreme situations, so wouldn't trust a SLI then. I've looked a little into people who go into extreme situations and I would say that certain SLEs and LSI are very good here. Also SEE, if it's more on the social side. Also some NT types can be good in extreme situations when cold novel thinking is needed.