[Netzgeist]

Your character would be the most capable RPG player in history! Understand the most obscure systems; creating and calculating characters in less than an hour in most of them!

[Morg]

Your character would be the most capable RPG player in history! Understand the most obscure systems; creating and calculating characters in less than an hour in most of them!

Ya WOW a person that could GM Rolemaster Standard system from memory rather then looking up tables
<-- Brain explodes

[Valashar]

Your character would be the most capable RPG player in history! Understand the most obscure systems; creating and calculating characters in less than an hour in most of them!

Ya WOW a person that could GM Rolemaster Standard system from memory rather then looking up tables
<-- Brain explodes

I dunno... sounds a bit of a strech. 

[Canticle]

Remember that mental ability is split into four Attributes.  A high logic means you have superior analytical, mechanical, and information processing skills.  But charisma is used for manipulating or mentally dominating people; intuition is used for observation, picking up clues, and acting on instinct; and willpower is used for resolve, determination, and the gumption to get things done.

Someone with high Logic, but average or lower in other mental attributes, would be gifted, but not mentally superior in every way.  A high logic character would shine at quickly understanding complex concepts, and anything to do with fiddling with or fixing things - biotech, explosives, chemicals, and so on.  You are best off getting a smattering of a lot of skills, because many logic skills can not be defaulted on.

Regardless of this, the character would think differently than others because of his analytic and processing skills. He would have to process information in a way better than humans do and he would analyze information in a more efficient way. Perceiving the world in a radically different way than humans would give the character a drastically different input and output than everyone with 6 or below Logic. 6 Logic is the meat human maximum for empirical thought. Raising it to 12 would just make you beyond everything else.

[Rockopolis]

Doctor Manhattan, you mean?

[CanRay]

Or any other superhuman insufferable genius that can barely relate to the rest of humanity because they're too stupid.

[Charybdis]

Or any other superhuman insufferable genius that can barely relate to the rest of humanity because they're too stupid.

So, it's Sheldon (of Big Bang theory).

Sen-frickin'-sational....

[Canticle]

Doctor Manhattan, you mean?

Kind of, Doc Manhattan is underplayed by Moore as an alien mind. His time-speak antics (Rorschach, I am speaking to Laurie in twelve seconds) plays with the idea.

Something you could play with though is a lack of free will. You'd have to choose the scope that the character cares about of course. This ties in with intuition and willpower and could be a good place for character development and karma. If you are an essentially logical person, how could you choose to do something illogical? Should BrainCase turn around and save his runner friend who is under fire? BrainCase knows that he could probably get to the runner and inject a stim that would help him ignore his pain and get out—but Case could, very likely, get shot and die and not complete the current mission. This could expand so that the character has contacts and plans in motion.

[Rockopolis]

The more I think about it, the more I know what I'd do with a 12 Logic character...have a headache.  Man, thinking is hard.

[Fortinbras]

Or any other superhuman insufferable genius that can barely relate to the rest of humanity because they're too stupid.

So, it's Sheldon (of Big Bang theory).

Sen-frickin'-sational....

I've never heard of Autism being described as sensational.

[Charybdis]

Or any other superhuman insufferable genius that can barely relate to the rest of humanity because they're too stupid.

So, it's Sheldon (of Big Bang theory).

Sen-frickin'-sational....

I've never heard of Autism being described as sensational.

I've never thought of Sheldon as autistic; he's more of a high-functioning ego-maniac

In my experience autism sufferers are not PhD holding genii who belittle those around them (including other PhD-wielding academics) for being incompetent. Some have definitely been niche-specific higher-functioning individuals, but stereotypically confused by social interactions or emotion (leaving most very shy and quietly guarded).

Sheldon certainly doesn't fall any shy or quiet labels!

[CanRay]

Labels are for people who lack the intelligence or imagination to understand just how diverse and interesting the world really is.

[EmperorPenguin]

Labels will tell you what's in a can, but not how it tastes.

Maybe they are used dismissively at times, but we all use them.

[Rockopolis]

Whoa, I just noticed SURGE's Metagenic Improvement stacks with Genetic Optimization and Exceptional Attribute.  If I wanted to be even cheesier, it looks like I could push logic to 13.  Time to change the thread title.

[Fortinbras]

I've never thought of Sheldon as autistic; he's more of a high-functioning ego-maniac

In my experience autism sufferers are not PhD holding genii who belittle those around them (including other PhD-wielding academics) for being incompetent. Some have definitely been niche-specific higher-functioning individuals, but stereotypically confused by social interactions or emotion (leaving most very shy and quietly guarded).

Sheldon certainly doesn't fall any shy or quiet labels!

You've never heard of Temple Grandin.
Most autistic individuals, particularly those with Asperger Syndrome, don't understand social interaction, but each individual's reaction to that is specific. Many I've known personally are neither shy nor reserved, but can dominate an entire evenings conversation without realizing others aren't interested. Others are incredibly quite and curt.
It's not that the Sheldon character doesn't want to understand people, he can't. What is and is not socially acceptable is explained and reiterated multiple times, but despite having an incredible cognitive ability, he just can't understand. That's autism.
That isn't a necessarily a bad thing. Dr. Grandin tells a great story(if you ever get to hear her speak, please do) about two autistic friends of hers whose ideal romantic evening is a dinner at their favorite restaurant and a night discussing physics. That's what they like and they wouldn't have it any other way. It's as valid as any other lifestyle. When she talks of her own life, she says avoiding romance was something she choose rather than something that was forced upon her.
That being said, growing up and living with autism provides a number of challenges and hardships I wouldn't want to have faced.

The way the normal human brain works, having a cognitive ability large enough detracts from other parts of the brain. You only have so many points to spend in mental attributes, as it were. That's why IQs at a certain level of curvature start to show a substantial increase of cases with autism.
In the future, with cyberware and what not, we might have found a way to circumvent this problem, but I think a Logic of 13 should be played with that in mind.
Maybe less Rainman and more Abed, though.