QUOTE (Ascalaphus @ Dec 2 2009, 11:20 AM)
I suppose you could put it that way, yes. But OTOH, isn't that what a DNI linked to a commlink is for too?
A DNI doesn't necessarily interface at such a deep level. It's a hands free means of issuing
conscious commands and consciously paying attention to some linked piece of hardware. Type an email in your head; order a smartlink to eject a clip; check your biofunctions via biomonitor; type in an equation into a calculator program; watch a recorded trid show - all done in your head, rather than by physical keyboard or physical display. It's augmented reality bypassing the sensory and motor nerves and plugging straight into the relevant cortices of your brain, but just as conscious and deliberate as typing on physical keyboards or watching physical displays.
The Math SPU (and Attention Coprocessor, and Encephalon) are
unconscious systems. With an attention coprocessor, you're simply more aware - you could follow TV closely while typing an in-depth response on Dumpshock. While DNI might make an augmented reality window open in your head to show the TV (no better at expanding your awareness than looking at the TV with your own eyes), the attention coprocessor seamlessly expands the amount of stuff you can pay attention to. Similarly, Math SPUs seamlessly appear like a boosted mathematical ability. The problem just seems easier to solve, and the precise answer appears quickly in your head, just like when you solve a simple math problem on your own. Encephalons are more generic processors that augment problem solving further than Math SPUs.
Look at it from the rules and build up the fluff explanation from there:
If you put a math program, or math knowsoft, into a Commlink, do you get math bonuses to any tests related to mathematical operations, from engineering to hacking and electronic warfare? No.
If you put a math SPU in your head, you do get those bonuses. There's something different than a mere DNI link to a fancy calculator in the Math SPU.
Moreover, while you can put widgets like orientation systems and radar sensors into armor, commlinks, and cyberlimbs, the Math SPU (and attention coprocessor, and encephalon)
always use essence. That says there's some deeper connection there, IMO.
I'm sure there are other explanations, but whatever explanation you settle on, I'd start from the evidence (rules and fluff) and try to build an explanation that fits them rather than working from a theory back to the evidence.