What exactly happens when your Solipsist's Psi bar falls too low? Are there any positive features of Solipsim? And how low is too low? There are cryptic comments on the skill selection screen that say things like "Taking a point in this talent raises your Solipsism threshold by 10%". How do I tell what my current threshold is?
This seems important because if the effect is really bad, then I want to stay well away from it. On the other hand, it's fairly tedious to constantly be calculating 30% of 226, or whatever my current Psi rating is, by hand...