• kqr 14 minutes ago

    > This robot hand will beat you at rock-paper-scissors 100% of the time. It can recognise a competing hand gesture in 1 millisecond and move its own hand to make the winning gesture to complete at the same time.

    This is one of those things that is surprisingly un-hard, though I don't claim a 100 % success rate.

    On a non-competitive level, people tend to open into their choice on the way down. The strategy I use is to look for if their fingers unfurl, and then I immediately fold out scissors. In all other cases I keep a fist.

    This works because paper is such an obvious shape even early on in the movement. If their fingers go out, they are doing either paper or scissors, which will on average be beaten by scissors. If their fingers don't go out early, it's either scissors or rock, which on average is beaten by rock.

    • ragebol 3 hours ago

      Having worked on home robotics (in university, for RoboCup@Home so nothing commercial), home robots now finally feel really feasible. The breakthroughs from LLMs and other ML technologies could finally bring this dream to reality.

      I'd gladly pay 10k for a robot to do all the chores at home.

      • genmon 2 hours ago

        My take is that this is an opportunity to re-think what chores are, and what white goods are for

        Like -- let's say you rent (as we all do, increasingly). Instead of buying different special purpose kitchen gadgets, white goods, and cleaning equipment to haul around with you, why not a general purpose robot that does the easy 80% of all chores?

        • modeless 2 hours ago

          Yes, it's an opportunity to simplify the home. You don't need labor saving devices if you don't need to save labor.

          • ragebol 2 hours ago

            You're saying: why buy a dishwasher and a washing machine and a dryer and a vacuum robot etc if you could buy a home robot to do all of those chores by robot-hand?

            • Filligree an hour ago

              The answer is going to be energy efficiency. Your dishwasher uses dramatically less power and water than you would use, if washing them by hand.

              • Semaphor 16 minutes ago

                > Your dishwasher uses dramatically less power and water than you would use, if washing them by hand.

                Only if used optimally, or the handwashing is very wasteful. There is one study I know of, it was paid for by washing machine manufacturers and has quite a few issues (like not removing outliers).

                And yes, I measured my usage of water and power.

                (I’d still get a dishwasher if my kitchen had space for it)

                • ragebol an hour ago

                  Unfortunately, I'm pretty sure most people only care about money efficiency: what choice is cheaper, now and over time.

                  • Filligree an hour ago

                    That’ll still be the dishwasher, then.

          • genmon 3 hours ago

            Post author here

            Somebody please build me that home defrag robot!