Eclipse Phase-Predictive Boost Sleight
In reply to ClausLars (msg # 1):
I've usually seen the 'intuition' element emphasized. It's useful for making sudden decisions for purposes of taking action, so it's great for Fray, Initiative, or trying to ricochet a grenade around a corner, and you could even probably sweet talk one of the GMs I've had in the past into letting it help you find the most likely way out of a burning building, but it isn't going to let you 'intuitively' crack serious encryption, program a fabber, do intensive research, or something else that's more about method/technology than it is intuition (yes, intuition can play SOME role in almost anything, but it isn't the majority of what's going on in coding). It might get permitted for certain social interactions, depending on what one's trying to do.
The other way I've seen it approached is via GIGO. Your PB ability is limited by available data. When you're in a firefight, you've got data literally coming at you. On the other hand, trying to predict the markets? Good luck, simply encompassing the amount of chaos going on (particularly since many corporations probably are both (1) trying to create AGI systems which can do market prediction and (2) similar systems which can 'jam' such prediction by inserting random buy/sell orders) is going to be effectively impossible.
Pretty much every GM I've ever discussed it with has agreed that it isn't applicable to every skill check, or even a majority of them.