In my universe, which is based on the GURPS 3e system and psi rules
with some house modifications, _every_ Homosentient is a potential
psion. Everyone has the theoretical potential to display all the
Powers, but in most people the powers are both weak and self-canceled
by their own native Antipsi abilities.
My modified psi rules are here:
http://groups.google.com/group/rec.games.frp.gurps/browse_thread/threa...9f03eed
The mindshiedl rules are modfied further and expanded as follows:
Absolutely anyone can possess a mind shield, regardless of whether s/
he has any other active psionic abilities. Some people do have a
default natural mind shield, with a default Power of Will-5 and a
default skill level of IQ-6.
(In the earlier thread it was said that 'most' people have such
natural shields, this is an error. About ten percent of the
population of _H. sapiens_ has a natural mind shield at these levels).
A character can purchase the Mind Shield Power and skill at character
creation, just as they can any other ability, if they do so it
_replaces_ the natural, automatic shield if they already had one.
The Mind Shield _power_ costs 3 pts/lvl, the Mind Shield _skill_ is
Mental/Hard.
Also, anyone possessing Mind Shield _skill_ of 10 or better can choose
to add their Will to the Power level of their shield for a given turn,
at a cost of 1 Fatigue per turn.
EXAMPLE: Paul's player purchased the Mind Shield ability at Power 10,
at a cost of 30 character pts. He wishes to buy the associated skill
at 12.
The character has an IQ of 12, so as a M/H skill bought at IQ level,
it costs 4 pts.
So at a cost of 34 character pts Paul has a skill-12 Power 10 Mind
Shield, which works most as described in the GURPS 3e psi rules.
Since he has a skill greater than 10, Paul has the option of adding
his Will to his mind shield's native Power. He has IQ 12 and two
levels of Strong Will, so by spending 1 Fatigue point he can raise his
mind shield from Power 10 to Power 24 (10+14), for _one turn_. He can
repeat this but each turn of doing so costs another point of Fatigue,
it can rapidly become exhausting.