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> or can it process them with some amount of parallelism

I guess someone with two boxes handy could set them up next to each other and run two copies of this test to see if their reaction time holds up or if it lengthens?

EDIT: mine suffers greatly on dual wield: 225 -> 320 ms

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I'll have a good think about whether we can process things in parallel or only in series the next time I decide to walk and chew gum while bouncing a ball, not tripping over things, and staying out of traffic.

none of those activities need involve conscious decisions, however

Having a think is not a conscious activity?

that, yes, sorry.

I meant walking, chewing gum, dribbling a basketball, and avoiding traffic.

Depends on expertise. Consider a toddler learning to walk, while eating a snack, carrying a toy and avoiding the cat.

Driving stick is a good example, as shifting gears requires conscious thought at first and becomes mostly automated with experience.

Mh, balance that ball on your finger while keeping it in spin or dribble it between your legs while spinning your body around and see how many conscious decisions you make while not stepping into canine feces.

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