If there are 8x10^9 people, each of whom gets a car with 40kg of copper, wouldn't that be a total of 3.2x10^11 kg of copper? or 3.2x10^8 tonnes? 320 million tonnes?
How can drugs get more expensive? He already brought down their prices "600%, 700%, 1000%".
TIL about catastrophic cancellation, which deals with the subtraction of approximate numbers rather than the exact, and I am like, holy f-ing hell, this explains so much why my math on the necklace was so wonky.
@blackle hold on, going back to the thing at the beginning where I counted the states and stuff.
each state is a distance of 1 from 8^2 different states (8^2+1 if we allow distance 0, too), because we can flip any one square, and we need 8^2 different classes, so yes we do need to be maximally efficient.
... also I should probably start tagging math stuff if I wanna look back at it. #mathing