drive to grocery store
for each item on the list:
pick it upput it in the trolly.
find the checkout line that looks shortest
(note: it's not the quickest)
while people are in front of you: do nothing.
for each item in the trolley:
pick it upput it on the conveyor belt.
[Now we'll switch over to look at the cashier program]
for each item on the conveyor belt
pick it up
no bag on bag holder?
pick up an empty bag
put it on the bag holder
put the item in a bag.
pick up the bag
put it down the end of the counter.
tell customer the price
put it in the till
[switch over to look at the customer program again]
for each bag on the counter:
pick it upput it in the trolley
push trolley to car.
open boot. (i.e. 'trunk')
for each bag in the trolley:
pick it upput it in boot (i.e. 'trunk')
push trolley out of the way.
do while bags left in boot:
while i have the strength to carry one more bag:
pick up a bag.
no bags left in car?
close boot (i.e. 'trunk')
walk up stairs
walk to kitchen counter
while bag/bags in my hands:
put it on kitchen counter
bags left in car? so walk downstairs
for each bag on the kitchen counter
while items remain in bag
pick up itemput item away
Okay -- this continual picking up and putting down stuff just seems so ridiculous. And it's not out of laziness that i hate it -- activity doesn't frighten me. I like exercise and all that freaky stuff. But i don't like being programmed by my needs.
I read somewhere that while everyone wants a domestic home robot, we tend to value it at around 20 bucks each. But the upfront cost of development would run into the tens of millions. Personally, I think i'd chip in about fifty dollars if a robot could do the grocery shopping for me, forever. Without complaining or needing servicing.
All it's got to perfect is the art of picking things up. And putting them away. Is that too much to ask?