Roleplayer #11, August 1988
Using (and Abusing) Eidetic Memory
by Walter Milliken
First, the good news: the Eidetic Memory advantage is extremely useful
and rather cheap. Now, the bad news (if you're a GM): many players have
discovered this. In this column, I'm going to look at both the potential
gains from this advantage, and the opportunity for abuse.
The utility of the Eidetic Memory advantage varies with the campaign type.
If the campaign is oriented toward combat, then DX-based skills dominate,
and the advantage is of little use. On the other hand, if the style of play
tends toward the heavy use of social or scientific skills, it becomes almost
irresistible.
When is Eidetic Memory cost-effective? First level Eidetic Memory only becomes
directly cost-effective when a character has 40 or more points invested
in IQ-based skills. Of course, there are also long-term benefits when earned
character points are spent on mental skills. The 60 point version of the
advantage is directly cost-effective if the character has 80 or more points
in mental skills. In fact, the first level version is more cost-effective
than the second level one unless at least 100 points would be spent on mental
skills without EM. (My thanks to Lestat for bringing this point to my attention.)
Optimizing
In general, the technique for optimizing skill points for this advantage
is the same as the attribute optimizing method I gave in my last
column. Total the number of points spent on mental skills, skipping
any with only 1/2 point (1 point for the 60 point version), and any not
affected by Eidetic Memory (spells and psi skills). Divide by the Eidetic
Memory multiplier (2 for the 20 point version, 4 for the 60 point one).
Add to this the cost of the advantage. If this is less than the original
total, using the advantage will save points.
An example may make this somewhat clearer. Gus Foley (in the Car
Warriors book) has a total of 50 points invested in mental
skills. In addition, all his mental skills have more than the 1/2 point
minimum. (You can't save any points on skills where only 1/2 point has been
spent, since you cannot spend 1/4 point on a skill. Even with Eidetic Memory,
the minimum investment is 1/2 point.) So we divide his current mental skill
total by 2, to get the number of points Gus would spend to buy the same
skills at the same levels, with the Eidetic Memory bonus. This comes out
to be 25 points, plus the 20 points for first level Eidetic Memory, for
a total of 45 points, 5 less than the same character without the advantage.
(I consider this character a bad example for using the Eidetic Memory advantage
-- more on this later.)
Mages and Memory
Fantasy mages benefit differently from Eidetic Memory. Since the multiplier
effect does not apply to spell skills, it looks less useful. But the advantage
still confers a +1 to spell skills (+2 for the 60 point version). If the
mage's IQ is 15 or higher, this is the same cost or cheaper than raising
his IQ by one, and has the same effect on spells. And, of course, all his
non-spell mental skills benefit from the multiplier. For IQs of 13 or 14,
EM costs 5 points more than the IQ increase, but the multiplier effect on
normal mental skills may still make this cost-effective. The trade-off between
buying IQ and buying Eidetic Memory depends on the exact mix of spells and
other mental skills. Examine both possibilities.
Eidetic Memory and IQ can be traded-off in non-mage characters, as well.
It may sometimes be cheaper for a high-IQ character to buy Eidetic Memory
than another point of IQ. This trade-off generally becomes useful at IQs
of 13 and higher, but it again depends on the exact mix of mental skills.
Note that first level EM has almost the same effect as increasing IQ by
one, due to the 1/2 point minimum skill investment, which makes the effective
minimum investment 1 point (2 points for second level EM), raising the minimum
level of the skill by one (two).
Abuse
Now that we've seen how to use Eidetic Memory, let's look at some reasons
not to use it. This advantage can be tremendously abusive. It's
common to design a character for a high-tech campaign with a large number
of points in mental skills. There is a tremendous temptation to save points
by buying the Eidetic Memory advantage. Don't do it for just that reason.
If you didn't think of it when you first came up with the character concept,
it probably doesn't belong there.
As an example, in a Humanx
campaign I'm running, seven of nine PCs have first level EM, and one has
second level. This seems rather excessive. (Characters with second level
Eidetic Memory are rarely a problem, since it is so expensive that it is
rarely cost-effective for point-misers.)
Character types I consider this advantage appropriate for: bards in low-tech
worlds, serious scholars of any subject in any world, people whose primary
job is researching information (reference librarians, for example), and
generalists, who learn lots of different mental skills simply because they
find it easy to. I find the following borderline cases: wizards, reporters,
scientists and engineers, espionage agents. Some character types I don't
think should have the advantage include: mechanics, pilots, and merchants.
Remember, characters with this advantage have a "trick memory."
They remember obscure facts that they read once six years ago, people's
telephone numbers, and exactly where in the mound of papers on their desk
they put that file they're looking for. This should have a substantial effect
on the character's overall personality and behavior, and will often affect
his choice of profession. It's not just a way to learn skills cheaply. Remember,
and roleplay it!
Editor's note: Largely due to the points Walter makes in this article,
the cost of the "cheaper" version of Eidetic Memory has been in-creased
to 30 points for the third edition of the Basic Set. That doesn't invalidate
the discussion here, though -- it just changes the math. The new balance
point for first-level Eidetic Memory is left as an exercise for the point-miser
. . .
[Transcriber's note: After playing a character
with second-level Eidetic Memory in a Space
campaign for a couple of years, Walter Milliken now believes that Eidetic
Memory-based characters are likely to be very abusive,
long-term. He has some fixes for that, which may appear in a Pyramid
article, or perhaps linked to this page
. . . --arcangel@io.com]
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